SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Fluor Corp. – ‘10-K’ for 12/31/20 – ‘EX-101.CAL’

On:  Friday, 2/26/21, at 7:07am ET   ·   For:  12/31/20   ·   Accession #:  1628280-21-3360   ·   File #:  1-16129

Previous ‘10-K’:  ‘10-K/A’ on 10/14/20 for 12/31/19   ·   Next:  ‘10-K’ on 2/22/22 for 12/31/21   ·   Latest:  ‘10-K’ on 2/20/24 for 12/31/23   ·   41 References:   

Find Words in Filings emoji
 
  in    Show  and   Hints

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/26/21  Fluor Corp.                       10-K       12/31/20  146:24M                                    Workiva Inc Wde… FA01/FA

Annual Report   —   Form 10-K
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   2.24M 
 2: EX-10.24    Material Contract                                   HTML    140K 
 3: EX-10.25    Material Contract                                   HTML     69K 
 4: EX-10.26    Material Contract                                   HTML     65K 
 5: EX-10.27    Material Contract                                   HTML     83K 
 6: EX-10.28    Material Contract                                   HTML     87K 
 7: EX-10.29    Material Contract                                   HTML     42K 
 8: EX-10.32    Material Contract                                   HTML     54K 
 9: EX-10.48    Material Contract                                   HTML    986K 
10: EX-21.1     Subsidiaries List                                   HTML    266K 
11: EX-23.1     Consent of Expert or Counsel                        HTML     43K 
12: EX-31.1     Certification -- §302 - SOA'02                      HTML     42K 
13: EX-31.2     Certification -- §302 - SOA'02                      HTML     42K 
14: EX-32.1     Certification -- §906 - SOA'02                      HTML     39K 
15: EX-32.2     Certification -- §906 - SOA'02                      HTML     39K 
22: R1          Cover page                                          HTML    106K 
23: R2          Consolidated Statement of Operations                HTML    144K 
24: R3          Consolidated Statement of Comprehensive Income      HTML     77K 
                (Loss)                                                           
25: R4          Consolidated Balance Sheet                          HTML    154K 
26: R5          Consolidated Balance Sheet (Parenthetical)          HTML     94K 
27: R6          Consolidated Statement of Cash Flows                HTML    148K 
28: R7          Consolidated Statement of Changes in Equity         HTML    119K 
29: R8          Consolidated Statement of Changes in Equity         HTML     51K 
                (Parenthetical)                                                  
30: R9          Description of Business                             HTML     48K 
31: R10         Significant Accounting Policies                     HTML     83K 
32: R11         Recent Accounting Pronouncements Recent Accounting  HTML     52K 
                Pronouncements                                                   
33: R12         Earnings Per Share                                  HTML     69K 
34: R13         Operating Information by Segment and Geographic     HTML    154K 
                Area                                                             
35: R14         Impairment, Restructuring and Other Exit Costs      HTML     74K 
36: R15         Income Taxes                                        HTML    124K 
37: R16         Supplemental Cash Flow Information                  HTML     58K 
38: R17         Partnerships and Joint Ventures                     HTML     56K 
39: R18         Guarantees                                          HTML     42K 
40: R19         Contingencies and Commitments                       HTML     54K 
41: R20         Contract Assets and Liabilities                     HTML     58K 
42: R21         Remaining Unsatisfied Performance Obligations       HTML     58K 
43: R22         Lines of Credit, Senior Notes and Other Borrowings  HTML     55K 
44: R23         Fair Value Measurements                             HTML     95K 
45: R24         Goodwill and Intangible Assets                      HTML     63K 
46: R25         Property, Plant and Equipment                       HTML     51K 
47: R26         Stock-Based Compensation                            HTML     95K 
48: R27         Retirement Plans                                    HTML    166K 
49: R28         Other Noncurrent Liabilities                        HTML     41K 
50: R29         Leases                                              HTML    239K 
51: R30         Derivatives and Hedging                             HTML     72K 
52: R31         Other Comprehensive Income (Loss)                   HTML    196K 
53: R32         Discontinued Operations                             HTML    163K 
54: R33         Quarterly Financial Data (Unaudited)                HTML    116K 
55: R34         Significant Accounting Policies (Policies)          HTML    137K 
56: R35         Significant Accounting Policies (Tables)            HTML     53K 
57: R36         Earnings Per Share (Tables)                         HTML     67K 
58: R37         Operating Information by Segment and Geographic     HTML    148K 
                Area (Tables)                                                    
59: R38         Impairment, Restructuring and Other Exit Costs      HTML     69K 
                (Tables)                                                         
60: R39         Income Taxes (Tables)                               HTML    127K 
61: R40         Supplemental Cash Flow Information (Tables)         HTML     66K 
62: R41         Partnerships and Joint Ventures (Tables)            HTML     52K 
63: R42         Revenue from Contract with Customer (Tables)        HTML     51K 
64: R43         Remaining Unsatisfied Performance Obligations       HTML     43K 
                (Tables)                                                         
65: R44         Lines of Credit, Senior Notes and Other Borrowings  HTML     49K 
                (Tables)                                                         
66: R45         Fair Value Measurements (Tables)                    HTML     94K 
67: R46         Goodwill and Intangible Assets (Tables)             HTML     89K 
68: R47         Property, Plant and Equipment (Tables)              HTML     53K 
69: R48         Stock-Based Compensation (Tables)                   HTML     93K 
70: R49         Retirement Benefits (Tables)                        HTML    165K 
71: R50         Leases (Tables)                                     HTML    169K 
72: R51         Derivatives and Hedging (Tables)                    HTML     73K 
73: R52         Other Comprehensive Income (Loss) (Tables)          HTML    199K 
74: R53         Discontinued Operations (Tables)                    HTML    187K 
75: R54         Quarterly Financial Data (Unaudited) (Tables)       HTML    107K 
76: R55         Description of Business (Details)                   HTML     43K 
77: R56         Significant Accounting Policies - Revenue           HTML     47K 
                Recognition (Details)                                            
78: R57         Significant Accounting Policies - Schedule of       HTML     56K 
                Useful Lives (Details)                                           
79: R58         Recent Accounting Pronouncements (Details)          HTML     50K 
80: R59         Earnings Per Share (Details)                        HTML    114K 
81: R60         Earnings Per Share (Limited Duration Stockholder    HTML     55K 
                Rights Agreement) (Details)                                      
82: R61         Operating Information by Segment and Geographic     HTML    177K 
                Area - Narrative (Details)                                       
83: R62         Operating Information by Segment and Geographic     HTML    135K 
                Area - External Revenue and Segment Profit (Loss)                
                (Details)                                                        
84: R63         Operating Information by Segment and Geographic     HTML     62K 
                Area - Reconciliation to Consolidated Amounts                    
                (Details)                                                        
85: R64         Operating Information by Segment and Geographic     HTML     68K 
                Area - External Revenue and Total Assets by                      
                Geographic Area (Details)                                        
86: R65         Impairment, Restructuring and Other Exit Costs -    HTML     74K 
                Narrative (Details)                                              
87: R66         Impairment, Restructuring and Other Exit Costs -    HTML     52K 
                Restructuring Costs (Details)                                    
88: R67         Impairment, Restructuring and Other Exit Costs -    HTML     66K 
                Restructuring Liability (Details)                                
89: R68         Impairment, Restructuring and Other Exit Costs -    HTML     59K 
                Schedule of Impairment (Details)                                 
90: R69         Income Taxes - Narrative (Details)                  HTML     76K 
91: R70         Income Taxes - Income Tax Expense (Benefit)         HTML     66K 
                (Details)                                                        
92: R71         Income Taxes - U.S. Statutory Federal               HTML     68K 
                Reconciliation (Details)                                         
93: R72         Income Taxes - Deferred Tax Assets and Liabilities  HTML     73K 
                (Details)                                                        
94: R73         Income Taxes - Unrecognized Tax Benefits (Details)  HTML     50K 
95: R74         Income Taxes - U.S. and Foreign Earnings from       HTML     49K 
                Continuing Operations before Taxes (Details)                     
96: R75         Supplemental Cash Flow Information (Details)        HTML     66K 
97: R76         Partnerships and Joint Ventures - Narrative         HTML     72K 
                (Details)                                                        
98: R77         Partnerships and Joint Ventures - Summary of        HTML     83K 
                Aggregate Financial Information (Details)                        
99: R78         Partnerships and Joint Ventures - Joint Venture     HTML     52K 
                Investment Agreement (Details)                                   
100: R79         Partnerships and Joint Ventures - Variable          HTML     58K  
                Interest Entities (Details)                                      
101: R80         Guarantees (Details)                                HTML     41K  
102: R81         Contingencies and Commitments (Details)             HTML    103K  
103: R82         Contract Assets and Liabilities (Details)           HTML     51K  
104: R83         Remaining Unsatisfied Performance Obligations -     HTML     52K  
                Schedule of Remaining Performance Obligation                     
                (Details)                                                        
105: R84         Lines of Credit, Senior Notes and Other Borrowings  HTML     51K  
                - Consolidated Debt (Details)                                    
106: R85         Lines of Credit, Senior Notes and Other Borrowings  HTML    116K  
                - Narrative (Details)                                            
107: R86         Fair Value Measurements - Recurring Basis           HTML     62K  
                (Details)                                                        
108: R87         Fair Value Measurements - Financial Instruments     HTML     87K  
                Not Required to be Measured at Fair Value                        
                (Details)                                                        
109: R88         Goodwill and Intangible Assets - Narrative          HTML     58K  
                (Details)                                                        
110: R89         Goodwill and Intangible Assets - Schedule of Each   HTML     68K  
                Major Intangible Asset Class (Details)                           
111: R90         Property, Plant and Equipment (Details)             HTML     59K  
112: R91         Stock-Based Compensation - Narrative (Details)      HTML    112K  
113: R92         Stock-Based Compensation - Restricted Stock,        HTML    100K  
                Restricted Stock Unit and Stock Option Activity,                 
                Terms and Significant Assumptions for Options                    
                (Details)                                                        
114: R93         Stock-Based Compensation - Fair Value of Options    HTML     52K  
                on Grant Date (Details)                                          
115: R94         Stock-Based Compensation - Range of Exercise        HTML     74K  
                Prices and Intrinsic Value Related to Options                    
                Outstanding (Details)                                            
116: R95         Stock-Based Compensation - VDI Units Granted        HTML     49K  
                (Details)                                                        
117: R96         Retirement Plans - Defined Contribution Retirement  HTML     43K  
                Plans (Details)                                                  
118: R97         Retirement Plans - Defined Benefit Pension Plan     HTML     50K  
                Amendments and Settlement (Details)                              
119: R98         Retirement Plans - Net Periodic Pension Expense     HTML     61K  
                for Defined Benefit Pension Plans (Details)                      
120: R99         Retirement Plans - Assumptions for Determining      HTML     64K  
                Projected Benefit Obligation and Net Periodic Cost               
                of Defined Benefit Pension Plans (Details)                       
121: R100        Retirement Plans - Target and Weighted Average      HTML     63K  
                Actual Allocations and Benefit Pension Plans                     
                (Details)                                                        
122: R101        Retirement Plans - Fair Value Measurements and      HTML    110K  
                Expected Benefit Payments for Defined Benefit                    
                Pension Plans (Details)                                          
123: R102        Retirement Plans - Change in Projected Benefit      HTML    118K  
                Obligation and Plan Assets and Funded Status of                  
                Defined Benefit Pension Plans (Details)                          
124: R103        Retirement Plans - Multiemployer Pension Plans      HTML     41K  
                (Details)                                                        
125: R104        Other Noncurrent Liabilities (Details)              HTML     46K  
126: R105        Leases - Narrative (Details)                        HTML     50K  
127: R106        Leases - Components of Lease Expense (Details)      HTML     60K  
128: R107        Leases - Information Related to Right-of-Use        HTML     99K  
                Assets and Lease Liabilities (Details)                           
129: R108        Leases - Supplemental Information Related to        HTML     66K  
                Leases (Details)                                                 
130: R109        Leases - Remaining Lease Payments (Details)         HTML     87K  
131: R110        Derivatives and Hedging - Narrative (Details)       HTML     46K  
132: R111        Derivatives and Hedging - Notional Amounts and      HTML     57K  
                Fair Values (Details)                                            
133: R112        Derivatives and Hedging - Gains (Losses)            HTML     57K  
                Associated with Cash Flow Hedges (Details)                       
134: R113        Other Comprehensive Income (Loss) - Tax Effects of  HTML     74K  
                Components of Other Comprehensive Income (Loss)                  
                (Details)                                                        
135: R114        Other Comprehensive Income (Loss) - Changes in      HTML    107K  
                AOCI Balances by Component (Details)                             
136: R115        Other Comprehensive Income (Loss) - Significant     HTML     94K  
                Items Reclassified Out of AOCI (Details)                         
137: R116        Discontinued Operations - Narrative (Details)       HTML     53K  
138: R117        Discontinued Operations - Earnings From             HTML     80K  
                Discontinued Operations (Details)                                
139: R118        Discontinued Operations - Assets and Liabilities    HTML    129K  
                Held for Sale (Details)                                          
140: R119        Discontinued Operations - Consolidated Statements   HTML     55K  
                of Cash Flows for the Discontinued Operations                    
                (Details)                                                        
141: R120        Quarterly Financial Data (Unaudited) - Summary of   HTML    116K  
                Quarterly Results of Operations (Details)                        
142: R121        Quarterly Financial Data (Unaudited) - Narrative    HTML     86K  
                (Details)                                                        
144: XML         IDEA XML File -- Filing Summary                      XML    266K  
21: XML         XBRL Instance -- flr-20201231_htm                    XML   6.04M 
143: EXCEL       IDEA Workbook of Financial Reports                  XLSX    206K  
17: EX-101.CAL  XBRL Calculations -- flr-20201231_cal                XML    423K 
18: EX-101.DEF  XBRL Definitions -- flr-20201231_def                 XML   1.74M 
19: EX-101.LAB  XBRL Labels -- flr-20201231_lab                      XML   3.30M 
20: EX-101.PRE  XBRL Presentations -- flr-20201231_pre               XML   2.21M 
16: EX-101.SCH  XBRL Schema -- flr-20201231                          XSD    299K 
145: JSON        XBRL Instance as JSON Data -- MetaLinks              743±  1.12M  
146: ZIP         XBRL Zipped Folder -- 0001628280-21-003360-xbrl      Zip    962K  


‘EX-101.CAL’   —   XBRL Calculations — flr-20201231_cal


This Exhibit is an XBRL XML File.


                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with Wdesk from Workiva -->
<!-- Copyright 2021 Workiva -->
<!-- r:51f7f397-029d-4fc3-94d6-5a58624532ce,g:62804d00-84f7-469d-8f34-e7991e253af8 -->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<link:roleRef roleURI="http://www.fluor.com/role/Coverpage" xlink:type="simple" xlink:href="flr-20201231.xsd#Coverpage"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/Coverpage" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFOPERATIONS" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDSTATEMENTOFOPERATIONS"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFOPERATIONS" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_0299f397-f6a7-4131-9b94-dcbed7db5d5a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_8f3a1f51-253e-4015-bc93-82da929f6991" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_0299f397-f6a7-4131-9b94-dcbed7db5d5a" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_8f3a1f51-253e-4015-bc93-82da929f6991" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_4edac654-a83e-4d3e-8a9f-076bf69816b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_0299f397-f6a7-4131-9b94-dcbed7db5d5a" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_4edac654-a83e-4d3e-8a9f-076bf69816b1" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:href="flr-20201231.xsd#flr_CostsAndExpensesOperatingAndNonoperating"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_7a58aaa0-3ed1-433f-9646-c53e635df9fc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_7a58aaa0-3ed1-433f-9646-c53e635df9fc" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_d20a5c9d-830d-42ca-893d-56d1c5d771bb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_d20a5c9d-830d-42ca-893d-56d1c5d771bb" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_797d32b2-0903-445e-8683-83d95fb44296" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:to="loc_us-gaap_RestructuringCharges_797d32b2-0903-445e-8683-83d95fb44296" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_bc6989c1-6413-459d-9403-e2588327309f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_bc6989c1-6413-459d-9403-e2588327309f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_f4b26d49-5296-4c5b-bc91-75dc93c5e3c6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpense"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:to="loc_us-gaap_InterestExpense_f4b26d49-5296-4c5b-bc91-75dc93c5e3c6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_e8ce2112-f0bc-44a4-94b1-c5e0b938ad3f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentIncomeInterest"/>
<link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_CostsAndExpensesOperatingAndNonoperating_2447ecd8-af97-4dec-8daf-22872fc3e3de" xlink:to="loc_us-gaap_InvestmentIncomeInterest_e8ce2112-f0bc-44a4-94b1-c5e0b938ad3f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_e2b6ac1b-dc52-4c78-9713-5885bf92bd88" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProfitLoss"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_b938b18e-3fb9-45f7-a7de-a96783717726" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_e2b6ac1b-dc52-4c78-9713-5885bf92bd88" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_b938b18e-3fb9-45f7-a7de-a96783717726" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_1bfae8a1-80ed-4246-bb1b-12faf63e3db4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_e2b6ac1b-dc52-4c78-9713-5885bf92bd88" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_1bfae8a1-80ed-4246-bb1b-12faf63e3db4" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_867aeca1-465b-4beb-a9fe-40f86d37318f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_dd590d22-8dcf-4822-b236-45d46cf30782" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_867aeca1-465b-4beb-a9fe-40f86d37318f" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_dd590d22-8dcf-4822-b236-45d46cf30782" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_7d686041-e224-4cb8-a975-9a2e54e372b8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_867aeca1-465b-4beb-a9fe-40f86d37318f" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_7d686041-e224-4cb8-a975-9a2e54e372b8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_a611bdbb-3e5c-4c2b-b16d-170a09a06ea3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasic"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_a4dd1192-c064-49fe-b9a6-0ad8df33bfa2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_a611bdbb-3e5c-4c2b-b16d-170a09a06ea3" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_a4dd1192-c064-49fe-b9a6-0ad8df33bfa2" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_801a7056-d51f-4ae8-a23a-79889e85ebff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_a611bdbb-3e5c-4c2b-b16d-170a09a06ea3" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_801a7056-d51f-4ae8-a23a-79889e85ebff" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_b33f2950-7a01-46f4-922e-05fe16b4ff01" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_3c2b696b-cc7a-4932-90b9-f769a8469353" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_b33f2950-7a01-46f4-922e-05fe16b4ff01" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_3c2b696b-cc7a-4932-90b9-f769a8469353" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_c09c8867-e06a-41dc-a054-28a227f09203" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_b33f2950-7a01-46f4-922e-05fe16b4ff01" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_c09c8867-e06a-41dc-a054-28a227f09203" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_e040ede5-603b-4c17-9469-cb1d4cfa6eb8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6b0982d4-4c2f-440e-95c7-91c885d07a74" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_e040ede5-603b-4c17-9469-cb1d4cfa6eb8" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6b0982d4-4c2f-440e-95c7-91c885d07a74" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_bb6d5247-2c87-422f-90bf-76315d8dea22" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_e040ede5-603b-4c17-9469-cb1d4cfa6eb8" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_bb6d5247-2c87-422f-90bf-76315d8dea22" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_48a04ce4-79e3-4839-bcdd-46e2f55a6ac1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_5d87e18b-780e-4257-aef7-5cfca2cdf81d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Revenues"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_48a04ce4-79e3-4839-bcdd-46e2f55a6ac1" xlink:to="loc_us-gaap_Revenues_5d87e18b-780e-4257-aef7-5cfca2cdf81d" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_CostsAndExpensesOperatingAndNonoperating_3e1a80f1-2033-45e4-8b6a-3399998de65b" xlink:href="flr-20201231.xsd#flr_CostsAndExpensesOperatingAndNonoperating"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_48a04ce4-79e3-4839-bcdd-46e2f55a6ac1" xlink:to="loc_flr_CostsAndExpensesOperatingAndNonoperating_3e1a80f1-2033-45e4-8b6a-3399998de65b" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCOMPREHENSIVEINCOMELOSS" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDSTATEMENTOFCOMPREHENSIVEINCOMELOSS"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCOMPREHENSIVEINCOMELOSS" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ca160484-0d45-49e9-a954-0795f96d2e9e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_c3736bd3-81d9-4c6e-be90-7e807a6ceec7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ca160484-0d45-49e9-a954-0795f96d2e9e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_c3736bd3-81d9-4c6e-be90-7e807a6ceec7" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_OtherComprehensiveIncomeLossNetOfTaxEquityMethodInvestments_6133f877-2d1f-4266-8415-1cad7ccb4b7b" xlink:href="flr-20201231.xsd#flr_OtherComprehensiveIncomeLossNetOfTaxEquityMethodInvestments"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ca160484-0d45-49e9-a954-0795f96d2e9e" xlink:to="loc_flr_OtherComprehensiveIncomeLossNetOfTaxEquityMethodInvestments_6133f877-2d1f-4266-8415-1cad7ccb4b7b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_17b4a44e-d00b-4c2c-97ba-66831bac262e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax"/>
<link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ca160484-0d45-49e9-a954-0795f96d2e9e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_17b4a44e-d00b-4c2c-97ba-66831bac262e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxExcludingEquityMethodInvestments_cd28028d-1f55-4154-9d53-7d525981f071" xlink:href="flr-20201231.xsd#flr_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxExcludingEquityMethodInvestments"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ca160484-0d45-49e9-a954-0795f96d2e9e" xlink:to="loc_flr_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxExcludingEquityMethodInvestments_cd28028d-1f55-4154-9d53-7d525981f071" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_d3b6eee7-569b-4e13-9dd6-efbae528e356" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ca160484-0d45-49e9-a954-0795f96d2e9e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_d3b6eee7-569b-4e13-9dd6-efbae528e356" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_4ed81223-94dd-45e0-a6fd-8b321ff0c5aa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_e36d87cb-3bfc-4347-b1fe-87c5981a47a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_4ed81223-94dd-45e0-a6fd-8b321ff0c5aa" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_e36d87cb-3bfc-4347-b1fe-87c5981a47a8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_3606b78c-620c-4515-98dc-770615e62dfe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_4ed81223-94dd-45e0-a6fd-8b321ff0c5aa" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_3606b78c-620c-4515-98dc-770615e62dfe" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_464c78b8-f72e-4e78-a740-c1f434bc5ace" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_c4026de6-0a85-4318-8059-d2e5ccdfee42" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProfitLoss"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_464c78b8-f72e-4e78-a740-c1f434bc5ace" xlink:to="loc_us-gaap_ProfitLoss_c4026de6-0a85-4318-8059-d2e5ccdfee42" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_250b2748-99fe-4cf9-a433-162eb8535383" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_464c78b8-f72e-4e78-a740-c1f434bc5ace" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_250b2748-99fe-4cf9-a433-162eb8535383" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDBALANCESHEET" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDBALANCESHEET"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDBALANCESHEET" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_b89b9944-dbbe-4414-898d-794d2c1698d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_b53c504b-4c85-45e2-8e3e-60c4abd8f6f8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockValue"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b89b9944-dbbe-4414-898d-794d2c1698d1" xlink:to="loc_us-gaap_PreferredStockValue_b53c504b-4c85-45e2-8e3e-60c4abd8f6f8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_a7ae855f-95b4-4d6b-9e89-a138e9c60abc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b89b9944-dbbe-4414-898d-794d2c1698d1" xlink:to="loc_us-gaap_CommonStockValue_a7ae855f-95b4-4d6b-9e89-a138e9c60abc" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_0db52e9a-8f0a-4520-8b11-cdd9897b9fb1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b89b9944-dbbe-4414-898d-794d2c1698d1" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_0db52e9a-8f0a-4520-8b11-cdd9897b9fb1" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8edd816c-a0eb-46a9-acb6-1cc5d8bd3447" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b89b9944-dbbe-4414-898d-794d2c1698d1" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8edd816c-a0eb-46a9-acb6-1cc5d8bd3447" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_cd81afcb-5357-47eb-a587-63a1dc23e2e6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b89b9944-dbbe-4414-898d-794d2c1698d1" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_cd81afcb-5357-47eb-a587-63a1dc23e2e6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_da541c72-f67d-4538-ad75-4027efa75a82" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_0bd65e08-6340-4073-b7d6-ae53c3f99a70" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_da541c72-f67d-4538-ad75-4027efa75a82" xlink:to="loc_us-gaap_StockholdersEquity_0bd65e08-6340-4073-b7d6-ae53c3f99a70" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_c1e904be-c9c0-4ca2-8f35-7aac9fa786d2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MinorityInterest"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_da541c72-f67d-4538-ad75-4027efa75a82" xlink:to="loc_us-gaap_MinorityInterest_c1e904be-c9c0-4ca2-8f35-7aac9fa786d2" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_a9b10209-5fab-4a5e-9140-b1c5f056a54c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_1c420509-af07-4f8e-bfa4-9e5192993b1a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsNoncurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_a9b10209-5fab-4a5e-9140-b1c5f056a54c" xlink:to="loc_us-gaap_AssetsNoncurrent_1c420509-af07-4f8e-bfa4-9e5192993b1a" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_240be484-39a9-439e-b3a2-02511c87ea90" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_a9b10209-5fab-4a5e-9140-b1c5f056a54c" xlink:to="loc_us-gaap_AssetsCurrent_240be484-39a9-439e-b3a2-02511c87ea90" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_b7f0d367-3ef2-45d6-ab3b-4062ec3b7617" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_b7f0d367-3ef2-45d6-ab3b-4062ec3b7617" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesCurrent_a983e84a-103b-4c77-98ff-112ce8ae46a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MarketableSecuritiesCurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:to="loc_us-gaap_MarketableSecuritiesCurrent_a983e84a-103b-4c77-98ff-112ce8ae46a9" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableNetCurrent_abf0eea7-eea0-4813-9369-2cc978fa3a59" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableNetCurrent"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:to="loc_us-gaap_AccountsNotesAndLoansReceivableNetCurrent_abf0eea7-eea0-4813-9369-2cc978fa3a59" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_114d8e71-7374-4889-92c2-a332bded3a29" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_114d8e71-7374-4889-92c2-a332bded3a29" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_3da06993-5cbe-434b-bff1-b487bb7da161" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:to="loc_us-gaap_OtherAssetsCurrent_3da06993-5cbe-434b-bff1-b487bb7da161" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_865985a0-03a2-46f8-be05-b3e3d8b67653" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_2e25ce11-dc91-4dc3-81a1-877c9ad08996" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_865985a0-03a2-46f8-be05-b3e3d8b67653" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsNoncurrent"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_fc32b900-aa4b-480f-88fc-1a9d4df765d3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_fc32b900-aa4b-480f-88fc-1a9d4df765d3" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_38df986f-0ded-4e64-b40f-894100a11486" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:to="loc_us-gaap_LongTermInvestments_38df986f-0ded-4e64-b40f-894100a11486" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_72c4f2a5-f7a9-4c4d-bd32-92c7f573653c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_72c4f2a5-f7a9-4c4d-bd32-92c7f573653c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_4ccced38-7262-43d5-9d5d-02bfb1264170" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_4ccced38-7262-43d5-9d5d-02bfb1264170" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_69b7148f-003d-41fe-8356-75f4375c96bc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:to="loc_us-gaap_Goodwill_69b7148f-003d-41fe-8356-75f4375c96bc" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_baaf2fc6-44ba-4547-abdd-339b3dc079db" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredCompensationPlanAssets"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_46056752-48e5-4ab5-bf93-d56bd0859b5f" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_baaf2fc6-44ba-4547-abdd-339b3dc079db" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_b6d13780-4dd7-4e5f-ad2d-34e97a9df98c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:to="loc_us-gaap_CommitmentsAndContingencies_b6d13780-4dd7-4e5f-ad2d-34e97a9df98c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_LiabilitiesNoncurrentExcludingLongTermDebtNoncurrent_cec8d7e0-3e8c-47de-b9d2-7c63be98a805" xlink:href="flr-20201231.xsd#flr_LiabilitiesNoncurrentExcludingLongTermDebtNoncurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:to="loc_flr_LiabilitiesNoncurrentExcludingLongTermDebtNoncurrent_cec8d7e0-3e8c-47de-b9d2-7c63be98a805" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_fb6a6d7d-3c06-43ed-8078-93b413f98cc8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_fb6a6d7d-3c06-43ed-8078-93b413f98cc8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_193bc1b3-3ed9-4df8-9826-cde88b59e973" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:to="loc_us-gaap_LiabilitiesCurrent_193bc1b3-3ed9-4df8-9826-cde88b59e973" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_b52a8f4e-21bb-43db-8e00-3cdd7286f9b0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_b52a8f4e-21bb-43db-8e00-3cdd7286f9b0" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ca5aca13-6881-4983-b25e-9b4ec1fa296f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1b3b9f19-b267-49fa-a125-d8d037cee997" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ca5aca13-6881-4983-b25e-9b4ec1fa296f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_83eb1c46-6159-4db2-89b0-93940c31c515" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:to="loc_us-gaap_AccountsPayableCurrent_83eb1c46-6159-4db2-89b0-93940c31c515" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_853c8f6f-f6c9-446a-bebe-3d829624158c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermBorrowings"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:to="loc_us-gaap_ShortTermBorrowings_853c8f6f-f6c9-446a-bebe-3d829624158c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_f868145b-9808-420b-8729-1ad2f6efa02f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_f868145b-9808-420b-8729-1ad2f6efa02f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_a6bf6475-3c02-4292-9c81-21db2911782e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_a6bf6475-3c02-4292-9c81-21db2911782e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_96314181-6896-4141-b575-2d96cdf4088d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_96314181-6896-4141-b575-2d96cdf4088d" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_66b3fc10-046e-41fd-8a98-e6df811b03ca" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_25c04bde-2021-4457-8ec3-69fdf142d2a7" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_66b3fc10-046e-41fd-8a98-e6df811b03ca" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDBALANCESHEETParenthetical" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDBALANCESHEETParenthetical"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDBALANCESHEETParenthetical" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCASHFLOWS" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDSTATEMENTOFCASHFLOWS"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCASHFLOWS" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_ecef23f2-ddea-43dd-910e-b18e236801bb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_ecef23f2-ddea-43dd-910e-b18e236801bb" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_93a76944-ac90-424a-b7b9-bbca4d32a6e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_93a76944-ac90-424a-b7b9-bbca4d32a6e4" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfAssumedDebt_e747cecd-50b9-4d12-97cb-97c2e1c0f9e6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfAssumedDebt"/>
<link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_RepaymentsOfAssumedDebt_e747cecd-50b9-4d12-97cb-97c2e1c0f9e6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_aa0da346-7b94-4de1-bf4e-d74058d22565" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
<link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_aa0da346-7b94-4de1-bf4e-d74058d22565" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfOtherDebt_f93d23a1-8dce-4ff6-9f8f-039e5d8cc6e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfOtherDebt"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfOtherDebt_f93d23a1-8dce-4ff6-9f8f-039e5d8cc6e1" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_f1d1ae08-c92b-4386-a7d0-8ecef819cf5a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
<link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_f1d1ae08-c92b-4386-a7d0-8ecef819cf5a" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_daa19200-2f4b-4bd6-8b55-366cf64327e5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt"/>
<link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_daa19200-2f4b-4bd6-8b55-366cf64327e5" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_fbd71990-cb6e-41ea-bd5a-929ea2fa477e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
<link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_fbd71990-cb6e-41ea-bd5a-929ea2fa477e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_31289587-bdac-479d-99cd-0997a7d7de9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
<link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_ProceedsFromMinorityShareholders_31289587-bdac-479d-99cd-0997a7d7de9b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_e004434a-d24d-4381-87bf-a8bddccc5456" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
<link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_e004434a-d24d-4381-87bf-a8bddccc5456" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsMinorityInterest_03597797-4fc3-44de-a3ad-75cda6adc790" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDividendsMinorityInterest"/>
<link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_72acb742-e7c2-4913-953b-4d25cd6769cf" xlink:to="loc_us-gaap_PaymentsOfDividendsMinorityInterest_03597797-4fc3-44de-a3ad-75cda6adc790" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_f3a6971a-57ab-48ab-95a9-c6fb725858aa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_f3a6971a-57ab-48ab-95a9-c6fb725858aa" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_b9d4a51e-68ce-41da-a95c-7f142f2d2486" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_b9d4a51e-68ce-41da-a95c-7f142f2d2486" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations_326f51e9-cfe4-4759-b32f-708eb8a226ea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations_326f51e9-cfe4-4759-b32f-708eb8a226ea" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_73938f8c-9f79-4782-ba4d-2deaca4bda9d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
<link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_73938f8c-9f79-4782-ba4d-2deaca4bda9d" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_7fd9f279-74db-42bb-9545-1502dad521a4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
<link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_7fd9f279-74db-42bb-9545-1502dad521a4" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_41e3e0b3-3248-4150-bc06-7210d3887e39" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_41e3e0b3-3248-4150-bc06-7210d3887e39" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_f8011573-afb7-4352-ae6d-29285e71a5e6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
<link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_f8011573-afb7-4352-ae6d-29285e71a5e6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_a2aa563a-082b-43fb-be3a-9ad89fb7adba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
<link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_a2aa563a-082b-43fb-be3a-9ad89fb7adba" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_dfa20ba5-40aa-4854-b72e-cf8e49914dde" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation"/>
<link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_ShareBasedCompensation_dfa20ba5-40aa-4854-b72e-cf8e49914dde" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_8d6a9b45-b2f6-4c6e-81ae-3ed8eb03a71f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Depreciation"/>
<link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_Depreciation_8d6a9b45-b2f6-4c6e-81ae-3ed8eb03a71f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_5221b390-1ce0-413e-9573-a5c7c6e20d9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions"/>
<link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_5221b390-1ce0-413e-9573-a5c7c6e20d9b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredCompensation_e8498b54-b0a9-4548-968a-1d09126a8bbf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredCompensation"/>
<link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredCompensation_e8498b54-b0a9-4548-968a-1d09126a8bbf" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_2fb66a38-a5e4-4233-9713-b895e873c690" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf"/>
<link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_2fb66a38-a5e4-4233-9713-b895e873c690" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_b67f4cea-0344-4446-9f0b-8e6714c1db71" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProfitLoss"/>
<link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_ProfitLoss_b67f4cea-0344-4446-9f0b-8e6714c1db71" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_IncreaseDecreaseInDeferredCompensationPlanAssets_8cb57ff5-9d68-4b82-96c0-480033a1d290" xlink:href="flr-20201231.xsd#flr_IncreaseDecreaseInDeferredCompensationPlanAssets"/>
<link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_flr_IncreaseDecreaseInDeferredCompensationPlanAssets_8cb57ff5-9d68-4b82-96c0-480033a1d290" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_7f214f63-5a15-44f1-ae3d-59cf9e1689fe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
<link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_796ef2ad-ae6d-410e-8f04-a6f4f8ddaf38" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_7f214f63-5a15-44f1-ae3d-59cf9e1689fe" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_0b098708-a568-49ef-ae6f-15f63f586089" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates_0b098708-a568-49ef-ae6f-15f63f586089" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_2477eacc-ddb0-460b-9e49-72e0360b4105" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_2477eacc-ddb0-460b-9e49-72e0360b4105" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_bb27d8ca-3fdc-42af-b29a-9696dcf2d93a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_bb27d8ca-3fdc-42af-b29a-9696dcf2d93a" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_a5e9add1-02d1-4f2a-bd78-3cc290659ba7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_a5e9add1-02d1-4f2a-bd78-3cc290659ba7" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_a2917651-d5ef-4986-9dfe-875ed493897f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates"/>
<link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_a2917651-d5ef-4986-9dfe-875ed493897f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_672af381-b34b-40c2-96b3-7c9a8e61c6a6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_672af381-b34b-40c2-96b3-7c9a8e61c6a6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLifeInsurancePolicies_deb61ead-a423-4f48-aba0-f1829d8031b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromLifeInsurancePolicies"/>
<link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_ProceedsFromLifeInsurancePolicies_deb61ead-a423-4f48-aba0-f1829d8031b5" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_65f5a49f-fdfd-4403-841e-ea6aa4b75d9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
<link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_65f5a49f-fdfd-4403-841e-ea6aa4b75d9f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_d349e290-75ec-4f87-9eae-034f602bcb2c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec867a67-bb9e-4305-8a36-f05649cddef7" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_d349e290-75ec-4f87-9eae-034f602bcb2c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cb9e1cbf-59f6-45d3-bf31-86d571eec8cd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_2bc671a7-6f9e-40b5-8f0f-6fff0d479233" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cb9e1cbf-59f6-45d3-bf31-86d571eec8cd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_2bc671a7-6f9e-40b5-8f0f-6fff0d479233" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f42ed538-3403-40c4-b9a9-d6099ce0a566" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cb9e1cbf-59f6-45d3-bf31-86d571eec8cd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f42ed538-3403-40c4-b9a9-d6099ce0a566" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d077f731-f379-4571-a70b-a6b193c83d7c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cb9e1cbf-59f6-45d3-bf31-86d571eec8cd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d077f731-f379-4571-a70b-a6b193c83d7c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0b57c312-43d0-4cb3-a511-0328ba8c6c66" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cb9e1cbf-59f6-45d3-bf31-86d571eec8cd" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0b57c312-43d0-4cb3-a511-0328ba8c6c66" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINEQUITY" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDSTATEMENTOFCHANGESINEQUITY"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINEQUITY" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINEQUITYParenthetical" xlink:type="simple" xlink:href="flr-20201231.xsd#CONSOLIDATEDSTATEMENTOFCHANGESINEQUITYParenthetical"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINEQUITYParenthetical" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DescriptionofBusiness" xlink:type="simple" xlink:href="flr-20201231.xsd#DescriptionofBusiness"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DescriptionofBusiness" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DescriptionofBusinessDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DescriptionofBusinessDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DescriptionofBusinessDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SignificantAccountingPolicies" xlink:type="simple" xlink:href="flr-20201231.xsd#SignificantAccountingPolicies"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SignificantAccountingPolicies" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="flr-20201231.xsd#SignificantAccountingPoliciesPolicies"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SignificantAccountingPoliciesPolicies" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SignificantAccountingPoliciesTables" xlink:type="simple" xlink:href="flr-20201231.xsd#SignificantAccountingPoliciesTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SignificantAccountingPoliciesTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SignificantAccountingPoliciesRevenueRecognitionDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#SignificantAccountingPoliciesRevenueRecognitionDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SignificantAccountingPoliciesRevenueRecognitionDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SignificantAccountingPoliciesScheduleofUsefulLivesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#SignificantAccountingPoliciesScheduleofUsefulLivesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SignificantAccountingPoliciesScheduleofUsefulLivesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RecentAccountingPronouncementsRecentAccountingPronouncements" xlink:type="simple" xlink:href="flr-20201231.xsd#RecentAccountingPronouncementsRecentAccountingPronouncements"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RecentAccountingPronouncementsRecentAccountingPronouncements" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RecentAccountingPronouncementsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RecentAccountingPronouncementsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RecentAccountingPronouncementsDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/EarningsPerShare" xlink:type="simple" xlink:href="flr-20201231.xsd#EarningsPerShare"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/EarningsPerShare" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/EarningsPerShareTables" xlink:type="simple" xlink:href="flr-20201231.xsd#EarningsPerShareTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/EarningsPerShareTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#EarningsPerShareDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/EarningsPerShareDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/EarningsPerShareLimitedDurationStockholderRightsAgreementDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#EarningsPerShareLimitedDurationStockholderRightsAgreementDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/EarningsPerShareLimitedDurationStockholderRightsAgreementDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicArea" xlink:type="simple" xlink:href="flr-20201231.xsd#OperatingInformationbySegmentandGeographicArea"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicArea" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaTables" xlink:type="simple" xlink:href="flr-20201231.xsd#OperatingInformationbySegmentandGeographicAreaTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OperatingInformationbySegmentandGeographicAreaNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaExternalRevenueandSegmentProfitLossDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OperatingInformationbySegmentandGeographicAreaExternalRevenueandSegmentProfitLossDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaExternalRevenueandSegmentProfitLossDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaReconciliationtoConsolidatedAmountsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OperatingInformationbySegmentandGeographicAreaReconciliationtoConsolidatedAmountsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaReconciliationtoConsolidatedAmountsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_2d2ecf51-0bdb-49f1-b147-5a2072e6764c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:to="loc_us-gaap_OperatingIncomeLoss_2d2ecf51-0bdb-49f1-b147-5a2072e6764c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_b17e8950-43c0-4608-8c22-a9f068240085" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_b17e8950-43c0-4608-8c22-a9f068240085" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_dfcd0c64-94c6-46ff-9471-438f8e34972f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestructuringCharges"/>
<link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:to="loc_us-gaap_RestructuringCharges_dfcd0c64-94c6-46ff-9471-438f8e34972f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_673e512f-1f6a-40ef-94fc-8aeaf0ca7b0e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent"/>
<link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:to="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_673e512f-1f6a-40ef-94fc-8aeaf0ca7b0e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_87fadc39-f223-4062-a87b-e9c5fa826c03" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_87fadc39-f223-4062-a87b-e9c5fa826c03" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_e327939f-801e-4082-91c9-001c6f0a4615" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
<link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3624cda0-bb55-405c-8e38-8fc6e6486a42" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_e327939f-801e-4082-91c9-001c6f0a4615" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaExternalRevenueandTotalAssetsbyGeographicAreaDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OperatingInformationbySegmentandGeographicAreaExternalRevenueandTotalAssetsbyGeographicAreaDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OperatingInformationbySegmentandGeographicAreaExternalRevenueandTotalAssetsbyGeographicAreaDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCosts" xlink:type="simple" xlink:href="flr-20201231.xsd#ImpairmentRestructuringandOtherExitCosts"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCosts" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#ImpairmentRestructuringandOtherExitCostsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#ImpairmentRestructuringandOtherExitCostsNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsRestructuringCostsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#ImpairmentRestructuringandOtherExitCostsRestructuringCostsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsRestructuringCostsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCosts_dfb5066d-a135-4795-8108-b6be9b1dd787" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestructuringCosts"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_85b78822-2fd5-43d8-ac33-ae31579a6580" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeveranceCosts1"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCosts_dfb5066d-a135-4795-8108-b6be9b1dd787" xlink:to="loc_us-gaap_SeveranceCosts1_85b78822-2fd5-43d8-ac33-ae31579a6580" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_23a34c9f-3634-46f7-985d-24b0dffc4ba6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCosts_dfb5066d-a135-4795-8108-b6be9b1dd787" xlink:to="loc_us-gaap_AssetImpairmentCharges_23a34c9f-3634-46f7-985d-24b0dffc4ba6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessExitCosts1_fb7e50d9-af47-40a7-8697-f42741703705" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessExitCosts1"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCosts_dfb5066d-a135-4795-8108-b6be9b1dd787" xlink:to="loc_us-gaap_BusinessExitCosts1_fb7e50d9-af47-40a7-8697-f42741703705" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_f6536d8c-0858-439c-a223-7b25e0bd787c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherRestructuringCosts"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCosts_dfb5066d-a135-4795-8108-b6be9b1dd787" xlink:to="loc_us-gaap_OtherRestructuringCosts_f6536d8c-0858-439c-a223-7b25e0bd787c" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsRestructuringLiabilityDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#ImpairmentRestructuringandOtherExitCostsRestructuringLiabilityDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsRestructuringLiabilityDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsScheduleofImpairmentDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#ImpairmentRestructuringandOtherExitCostsScheduleofImpairmentDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ImpairmentRestructuringandOtherExitCostsScheduleofImpairmentDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_08738f69-1ad8-4d8c-92a7-6fa5eaf1c401" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_4a089a31-06a5-438f-a11d-1c2e26d2eb2a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_08738f69-1ad8-4d8c-92a7-6fa5eaf1c401" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_4a089a31-06a5-438f-a11d-1c2e26d2eb2a" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_29506ddc-0a27-43f6-b7e1-68acd22b0f6b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_08738f69-1ad8-4d8c-92a7-6fa5eaf1c401" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_29506ddc-0a27-43f6-b7e1-68acd22b0f6b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_1c164c6f-8d85-4742-85ea-c2361fd9d0c8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_08738f69-1ad8-4d8c-92a7-6fa5eaf1c401" xlink:to="loc_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_1c164c6f-8d85-4742-85ea-c2361fd9d0c8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_de8e8df9-64fd-426b-8004-4b6bec4d240b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_08738f69-1ad8-4d8c-92a7-6fa5eaf1c401" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_de8e8df9-64fd-426b-8004-4b6bec4d240b" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxes" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxes"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxes" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesTables" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesIncomeTaxExpenseBenefitDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_aeb66797-2191-4016-9c59-f233c58f59b9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_ccc11cf4-149e-4299-9aee-c19452f8f6f3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_aeb66797-2191-4016-9c59-f233c58f59b9" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_ccc11cf4-149e-4299-9aee-c19452f8f6f3" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_95ea35fd-5f16-420c-8c97-9d10dec62ac8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_aeb66797-2191-4016-9c59-f233c58f59b9" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_95ea35fd-5f16-420c-8c97-9d10dec62ac8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_096c5879-3d59-4c09-ad97-f1e1b55dc45c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_aeb66797-2191-4016-9c59-f233c58f59b9" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_096c5879-3d59-4c09-ad97-f1e1b55dc45c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_707da977-9e78-4251-a40f-9c6b94fe8a16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_4111da15-025f-4208-821a-a329e5cb98d4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_707da977-9e78-4251-a40f-9c6b94fe8a16" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_4111da15-025f-4208-821a-a329e5cb98d4" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_58f4a34c-314f-448b-8d15-dd28a9944af7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_707da977-9e78-4251-a40f-9c6b94fe8a16" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_58f4a34c-314f-448b-8d15-dd28a9944af7" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_a98b0c09-d2bb-4ce1-96f0-0bed6e5a43b6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_707da977-9e78-4251-a40f-9c6b94fe8a16" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_a98b0c09-d2bb-4ce1-96f0-0bed6e5a43b6" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_e0a71a49-a9f9-4739-b906-e68729588023" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_dbccaf3d-27c2-474d-93ac-995e0b4a4a13" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_e0a71a49-a9f9-4739-b906-e68729588023" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_dbccaf3d-27c2-474d-93ac-995e0b4a4a13" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_68ecf547-5936-48ac-9d3b-269221a36803" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_e0a71a49-a9f9-4739-b906-e68729588023" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_68ecf547-5936-48ac-9d3b-269221a36803" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesUSStatutoryFederalReconciliationDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesUSStatutoryFederalReconciliationDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesUSStatutoryFederalReconciliationDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesDeferredTaxAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesDeferredTaxAssetsandLiabilitiesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesDeferredTaxAssetsandLiabilitiesDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_f0cc8b2b-eb99-4f55-8067-7c8f701553e7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsNet"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_74f2e0ff-1ebd-48db-a579-9174a29a09a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsGross"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_f0cc8b2b-eb99-4f55-8067-7c8f701553e7" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_74f2e0ff-1ebd-48db-a579-9174a29a09a7" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_40416019-9db3-456f-9ae6-5b98689c302b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_f0cc8b2b-eb99-4f55-8067-7c8f701553e7" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_40416019-9db3-456f-9ae6-5b98689c302b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsGross"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOtherComprehensiveLoss_2e748cd5-188f-4367-80ce-5e9f60297470" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsOtherComprehensiveLoss"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_us-gaap_DeferredTaxAssetsOtherComprehensiveLoss_2e748cd5-188f-4367-80ce-5e9f60297470" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_6e22946e-d693-4882-af51-2bffb2fe4fbc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_6e22946e-d693-4882-af51-2bffb2fe4fbc" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves_77b23e03-2760-4b83-966e-9a288795bd86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves_77b23e03-2760-4b83-966e-9a288795bd86" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensationAndBenefits_a9720006-94c4-42bd-8c48-78cd95e404a9" xlink:href="flr-20201231.xsd#flr_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensationAndBenefits"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_flr_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensationAndBenefits_a9720006-94c4-42bd-8c48-78cd95e404a9" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_c9e07e35-084d-485e-afa3-0ec7a9eb15c1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsOther"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_c9e07e35-084d-485e-afa3-0ec7a9eb15c1" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DeferredtaxAssetsTaxBasisOfInvestmentInExcessofBookBasis_cc8a1b69-84da-4ac5-ac4f-d40290233db4" xlink:href="flr-20201231.xsd#flr_DeferredtaxAssetsTaxBasisOfInvestmentInExcessofBookBasis"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_flr_DeferredtaxAssetsTaxBasisOfInvestmentInExcessofBookBasis_cc8a1b69-84da-4ac5-ac4f-d40290233db4" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_df6ad427-fcfd-46ec-a0d7-49896817833b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign"/>
<link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9763e21b-d197-479f-b834-168e20fceda8" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_df6ad427-fcfd-46ec-a0d7-49896817833b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_decb69e6-e554-48a4-8da3-c6ac55e70056" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_a65301b7-4fd2-4792-ac94-aae4e9373185" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_decb69e6-e554-48a4-8da3-c6ac55e70056" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_a65301b7-4fd2-4792-ac94-aae4e9373185" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DeferredTaxLiabilitiesDividendWithholding_085f6f5a-15d7-486f-89fa-e9bc289a483c" xlink:href="flr-20201231.xsd#flr_DeferredTaxLiabilitiesDividendWithholding"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_decb69e6-e554-48a4-8da3-c6ac55e70056" xlink:to="loc_flr_DeferredTaxLiabilitiesDividendWithholding_085f6f5a-15d7-486f-89fa-e9bc289a483c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_8cf533cc-e147-4435-a86d-783ac903ee89" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_decb69e6-e554-48a4-8da3-c6ac55e70056" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_8cf533cc-e147-4435-a86d-783ac903ee89" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesUnrecognizedTaxBenefitsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/IncomeTaxesUSandForeignEarningsfromContinuingOperationsbeforeTaxesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#IncomeTaxesUSandForeignEarningsfromContinuingOperationsbeforeTaxesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/IncomeTaxesUSandForeignEarningsfromContinuingOperationsbeforeTaxesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SupplementalCashFlowInformation" xlink:type="simple" xlink:href="flr-20201231.xsd#SupplementalCashFlowInformation"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SupplementalCashFlowInformation" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SupplementalCashFlowInformationTables" xlink:type="simple" xlink:href="flr-20201231.xsd#SupplementalCashFlowInformationTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SupplementalCashFlowInformationTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/SupplementalCashFlowInformationDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#SupplementalCashFlowInformationDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/SupplementalCashFlowInformationDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_aa8781bb-d792-4b44-ad28-d8e7fb3239ff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_aa8781bb-d792-4b44-ad28-d8e7fb3239ff" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_2b283c9d-188d-43e3-a6f6-082f6166a7a5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_2b283c9d-188d-43e3-a6f6-082f6166a7a5" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_dc5c2680-f7f8-4a88-b863-f8e39053dd1e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
<link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_dc5c2680-f7f8-4a88-b863-f8e39053dd1e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_b6a944d8-b922-48bc-a99f-1b445170ae07" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
<link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_b6a944d8-b922-48bc-a99f-1b445170ae07" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable_723e4701-a930-4123-aa68-946bd607cf4f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable"/>
<link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable_723e4701-a930-4123-aa68-946bd607cf4f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_16a25452-c64e-4828-871c-6090fe5870a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_16a25452-c64e-4828-871c-6090fe5870a9" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_d5c46fa3-85d9-4bb3-8b9a-6f50e28730bc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
<link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_d5c46fa3-85d9-4bb3-8b9a-6f50e28730bc" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_74af56e3-cce5-44aa-aa39-a0883f22f5a2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
<link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_46e67a33-271e-43f5-ab97-8deddac96497" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_74af56e3-cce5-44aa-aa39-a0883f22f5a2" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/PartnershipsandJointVentures" xlink:type="simple" xlink:href="flr-20201231.xsd#PartnershipsandJointVentures"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PartnershipsandJointVentures" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PartnershipsandJointVenturesTables" xlink:type="simple" xlink:href="flr-20201231.xsd#PartnershipsandJointVenturesTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PartnershipsandJointVenturesTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PartnershipsandJointVenturesNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#PartnershipsandJointVenturesNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PartnershipsandJointVenturesNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PartnershipsandJointVenturesSummaryofAggregateFinancialInformationDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#PartnershipsandJointVenturesSummaryofAggregateFinancialInformationDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PartnershipsandJointVenturesSummaryofAggregateFinancialInformationDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PartnershipsandJointVenturesJointVentureInvestmentAgreementDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#PartnershipsandJointVenturesJointVentureInvestmentAgreementDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PartnershipsandJointVenturesJointVentureInvestmentAgreementDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PartnershipsandJointVenturesVariableInterestEntitiesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#PartnershipsandJointVenturesVariableInterestEntitiesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PartnershipsandJointVenturesVariableInterestEntitiesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/Guarantees" xlink:type="simple" xlink:href="flr-20201231.xsd#Guarantees"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/Guarantees" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/GuaranteesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#GuaranteesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/GuaranteesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ContingenciesandCommitments" xlink:type="simple" xlink:href="flr-20201231.xsd#ContingenciesandCommitments"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ContingenciesandCommitments" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ContingenciesandCommitmentsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#ContingenciesandCommitmentsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ContingenciesandCommitmentsDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ContractAssetsandLiabilities" xlink:type="simple" xlink:href="flr-20201231.xsd#ContractAssetsandLiabilities"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ContractAssetsandLiabilities" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RevenuefromContractwithCustomerTables" xlink:type="simple" xlink:href="flr-20201231.xsd#RevenuefromContractwithCustomerTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RevenuefromContractwithCustomerTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/ContractAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#ContractAssetsandLiabilitiesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/ContractAssetsandLiabilitiesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligations" xlink:type="simple" xlink:href="flr-20201231.xsd#RemainingUnsatisfiedPerformanceObligations"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligations" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligationsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#RemainingUnsatisfiedPerformanceObligationsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligationsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligationsScheduleofRemainingPerformanceObligationDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RemainingUnsatisfiedPerformanceObligationsScheduleofRemainingPerformanceObligationDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligationsScheduleofRemainingPerformanceObligationDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligationsScheduleofRemainingPerformanceObligationDetails_1" xlink:type="simple" xlink:href="flr-20201231.xsd#RemainingUnsatisfiedPerformanceObligationsScheduleofRemainingPerformanceObligationDetails_1"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RemainingUnsatisfiedPerformanceObligationsScheduleofRemainingPerformanceObligationDetails_1" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowings" xlink:type="simple" xlink:href="flr-20201231.xsd#LinesofCreditSeniorNotesandOtherBorrowings"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowings" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowingsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#LinesofCreditSeniorNotesandOtherBorrowingsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowingsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowingsConsolidatedDebtDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LinesofCreditSeniorNotesandOtherBorrowingsConsolidatedDebtDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowingsConsolidatedDebtDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowingsNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LinesofCreditSeniorNotesandOtherBorrowingsNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LinesofCreditSeniorNotesandOtherBorrowingsNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/FairValueMeasurements" xlink:type="simple" xlink:href="flr-20201231.xsd#FairValueMeasurements"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/FairValueMeasurements" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/FairValueMeasurementsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#FairValueMeasurementsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/FairValueMeasurementsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/FairValueMeasurementsRecurringBasisDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#FairValueMeasurementsRecurringBasisDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/FairValueMeasurementsRecurringBasisDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/FairValueMeasurementsFinancialInstrumentsNotRequiredtobeMeasuredatFairValueDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#FairValueMeasurementsFinancialInstrumentsNotRequiredtobeMeasuredatFairValueDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/FairValueMeasurementsFinancialInstrumentsNotRequiredtobeMeasuredatFairValueDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/GoodwillandIntangibleAssets" xlink:type="simple" xlink:href="flr-20201231.xsd#GoodwillandIntangibleAssets"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/GoodwillandIntangibleAssets" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/GoodwillandIntangibleAssetsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#GoodwillandIntangibleAssetsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/GoodwillandIntangibleAssetsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/GoodwillandIntangibleAssetsNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#GoodwillandIntangibleAssetsNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/GoodwillandIntangibleAssetsNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/GoodwillandIntangibleAssetsScheduleofEachMajorIntangibleAssetClassDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#GoodwillandIntangibleAssetsScheduleofEachMajorIntangibleAssetClassDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/GoodwillandIntangibleAssetsScheduleofEachMajorIntangibleAssetClassDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_a20a0086-dcbb-4e7f-aa03-ea8041ca323d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_5a251fd0-4751-4f69-b184-0e8a9023d06c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_a20a0086-dcbb-4e7f-aa03-ea8041ca323d" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_5a251fd0-4751-4f69-b184-0e8a9023d06c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_ad5b5510-53ae-4646-be10-aaae1a26141b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_a20a0086-dcbb-4e7f-aa03-ea8041ca323d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_ad5b5510-53ae-4646-be10-aaae1a26141b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f3abe79c-9ba6-4a48-9dfa-6338f21b957f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_9108300f-c0ed-4092-b399-b4c0085ac0c7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f3abe79c-9ba6-4a48-9dfa-6338f21b957f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_9108300f-c0ed-4092-b399-b4c0085ac0c7" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_f5a28167-11a3-435a-b6d3-7c395766bcfd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f3abe79c-9ba6-4a48-9dfa-6338f21b957f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_f5a28167-11a3-435a-b6d3-7c395766bcfd" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/PropertyPlantandEquipment" xlink:type="simple" xlink:href="flr-20201231.xsd#PropertyPlantandEquipment"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PropertyPlantandEquipment" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PropertyPlantandEquipmentTables" xlink:type="simple" xlink:href="flr-20201231.xsd#PropertyPlantandEquipmentTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PropertyPlantandEquipmentTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/PropertyPlantandEquipmentDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#PropertyPlantandEquipmentDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/PropertyPlantandEquipmentDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_df5280c2-9592-49ad-b406-ad7237a25278" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_fc7cc4f6-9e70-4556-bf85-855d94ff796e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_df5280c2-9592-49ad-b406-ad7237a25278" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_fc7cc4f6-9e70-4556-bf85-855d94ff796e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_726a31a6-e348-43be-bf83-83942de17590" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_df5280c2-9592-49ad-b406-ad7237a25278" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_726a31a6-e348-43be-bf83-83942de17590" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensation" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensation"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensation" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensationTables" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensationTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensationTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensationNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensationRestrictedStockRestrictedStockUnitandStockOptionActivityTermsandSignificantAssumptionsforOptionsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensationRestrictedStockRestrictedStockUnitandStockOptionActivityTermsandSignificantAssumptionsforOptionsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensationRestrictedStockRestrictedStockUnitandStockOptionActivityTermsandSignificantAssumptionsforOptionsDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensationFairValueofOptionsonGrantDateDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensationFairValueofOptionsonGrantDateDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensationFairValueofOptionsonGrantDateDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensationRangeofExercisePricesandIntrinsicValueRelatedtoOptionsOutstandingDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensationRangeofExercisePricesandIntrinsicValueRelatedtoOptionsOutstandingDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensationRangeofExercisePricesandIntrinsicValueRelatedtoOptionsOutstandingDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/StockBasedCompensationVDIUnitsGrantedDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#StockBasedCompensationVDIUnitsGrantedDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/StockBasedCompensationVDIUnitsGrantedDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlans" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlans"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlans" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementBenefitsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementBenefitsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementBenefitsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansDefinedContributionRetirementPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansDefinedContributionRetirementPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansDefinedContributionRetirementPlansDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansDefinedBenefitPensionPlanAmendmentsandSettlementDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansDefinedBenefitPensionPlanAmendmentsandSettlementDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansDefinedBenefitPensionPlanAmendmentsandSettlementDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansNetPeriodicPensionExpenseforDefinedBenefitPensionPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansNetPeriodicPensionExpenseforDefinedBenefitPensionPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansNetPeriodicPensionExpenseforDefinedBenefitPensionPlansDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_30b4e847-8c74-435e-b684-0909b36aa903" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_30b4e847-8c74-435e-b684-0909b36aa903" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_a0d565ff-1192-4724-9834-716942c95290" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_a0d565ff-1192-4724-9834-716942c95290" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_bbba8095-acd8-4fba-92e7-dbb26a8e36eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
<link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_bbba8095-acd8-4fba-92e7-dbb26a8e36eb" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_754a6666-0856-43a8-8856-47ccd168524d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_754a6666-0856-43a8-8856-47ccd168524d" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit_d652f1cd-fc96-4630-b771-0f5b9ecff6db" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit"/>
<link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit_d652f1cd-fc96-4630-b771-0f5b9ecff6db" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_8fbb6016-b6bf-4f66-a040-186192e61835" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
<link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ca481ff-b57e-4454-9bc1-07ba2530c440" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_8fbb6016-b6bf-4f66-a040-186192e61835" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansAssumptionsforDeterminingProjectedBenefitObligationandNetPeriodicCostofDefinedBenefitPensionPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansAssumptionsforDeterminingProjectedBenefitObligationandNetPeriodicCostofDefinedBenefitPensionPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansAssumptionsforDeterminingProjectedBenefitObligationandNetPeriodicCostofDefinedBenefitPensionPlansDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansTargetandWeightedAverageActualAllocationsandBenefitPensionPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansTargetandWeightedAverageActualAllocationsandBenefitPensionPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansTargetandWeightedAverageActualAllocationsandBenefitPensionPlansDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansFairValueMeasurementsandExpectedBenefitPaymentsforDefinedBenefitPensionPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansFairValueMeasurementsandExpectedBenefitPaymentsforDefinedBenefitPensionPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansFairValueMeasurementsandExpectedBenefitPaymentsforDefinedBenefitPensionPlansDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansChangeinProjectedBenefitObligationandPlanAssetsandFundedStatusofDefinedBenefitPensionPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansChangeinProjectedBenefitObligationandPlanAssetsandFundedStatusofDefinedBenefitPensionPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansChangeinProjectedBenefitObligationandPlanAssetsandFundedStatusofDefinedBenefitPensionPlansDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_3a023227-6bb1-4583-9f41-eef669754c70" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligation_de53d245-a01b-4542-be61-b03326dfe8af" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation"/>
<link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_3a023227-6bb1-4583-9f41-eef669754c70" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligation_de53d245-a01b-4542-be61-b03326dfe8af" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_2d555e12-0885-4b9e-a984-f798e0642a12" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_3a023227-6bb1-4583-9f41-eef669754c70" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_2d555e12-0885-4b9e-a984-f798e0642a12" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/RetirementPlansMultiemployerPensionPlansDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#RetirementPlansMultiemployerPensionPlansDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/RetirementPlansMultiemployerPensionPlansDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OtherNoncurrentLiabilities" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherNoncurrentLiabilities"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherNoncurrentLiabilities" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OtherNoncurrentLiabilitiesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherNoncurrentLiabilitiesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherNoncurrentLiabilitiesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/Leases" xlink:type="simple" xlink:href="flr-20201231.xsd#Leases"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/Leases" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesTables" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesComponentsofLeaseExpenseDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesComponentsofLeaseExpenseDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesComponentsofLeaseExpenseDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeaseCost"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_a9374c27-0563-41df-b03e-adb4b41d2a9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseCost"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:to="loc_us-gaap_OperatingLeaseCost_a9374c27-0563-41df-b03e-adb4b41d2a9f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_3a0ca106-b45f-45a6-b3c9-7f29e277c88c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_3a0ca106-b45f-45a6-b3c9-7f29e277c88c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_3bc7edb9-cc16-4ac7-8a4e-93fd25fe39ee" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseInterestExpense"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_3bc7edb9-cc16-4ac7-8a4e-93fd25fe39ee" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_f1c91e5d-8ce7-4fd6-94df-85b31851cf2e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VariableLeaseCost"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:to="loc_us-gaap_VariableLeaseCost_f1c91e5d-8ce7-4fd6-94df-85b31851cf2e" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_ff32b82b-889c-4398-a5c3-35f15330ec99" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermLeaseCost"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:to="loc_us-gaap_ShortTermLeaseCost_ff32b82b-889c-4398-a5c3-35f15330ec99" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_40770643-d014-4000-b806-c3e99fc7e852" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubleaseIncome"/>
<link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_76e3417a-8c24-4557-9acd-8013246d6f6a" xlink:to="loc_us-gaap_SubleaseIncome_40770643-d014-4000-b806-c3e99fc7e852" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesInformationRelatedtoRightofUseAssetsandLeaseLiabilitiesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesInformationRelatedtoRightofUseAssetsandLeaseLiabilitiesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesInformationRelatedtoRightofUseAssetsandLeaseLiabilitiesDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:href="flr-20201231.xsd#flr_OperatingLeaseAndFinanceLeaseLiability"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_e346dafe-358c-40d4-8b21-e383b0854f83" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_e346dafe-358c-40d4-8b21-e383b0854f83" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_b087dcb9-518b-4447-b27b-e03515ab33db" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_b087dcb9-518b-4447-b27b-e03515ab33db" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_01e548d8-068d-47d9-bd8a-6ebf8f2412c7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiability"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:to="loc_us-gaap_OperatingLeaseLiability_01e548d8-068d-47d9-bd8a-6ebf8f2412c7" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_19aacefd-a38e-45ab-9ca4-31b29d7c261f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_19aacefd-a38e-45ab-9ca4-31b29d7c261f" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_43ad6ee7-0970-4505-9bd3-1aa81c6f8bce" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_43ad6ee7-0970-4505-9bd3-1aa81c6f8bce" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_f0923888-7886-4036-9f86-4bd0939f93bb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiability"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseLiability_b26990bf-540c-4f82-b890-c1f420430310" xlink:to="loc_us-gaap_FinanceLeaseLiability_f0923888-7886-4036-9f86-4bd0939f93bb" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_OperatingLeaseAndFinanceLeaseRightOfUseAsset_ed658dd4-1e28-4880-a735-d4a973a0cd5f" xlink:href="flr-20201231.xsd#flr_OperatingLeaseAndFinanceLeaseRightOfUseAsset"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_f0ec08a6-004c-4425-913a-eb35a5fd8612" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseRightOfUseAsset_ed658dd4-1e28-4880-a735-d4a973a0cd5f" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_f0ec08a6-004c-4425-913a-eb35a5fd8612" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_1df5c2e1-9ae4-4323-9da8-2c1e16c1a6f9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flr_OperatingLeaseAndFinanceLeaseRightOfUseAsset_ed658dd4-1e28-4880-a735-d4a973a0cd5f" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_1df5c2e1-9ae4-4323-9da8-2c1e16c1a6f9" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesSupplementalInformationRelatedtoLeasesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesSupplementalInformationRelatedtoLeasesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesSupplementalInformationRelatedtoLeasesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesRemainingLeasePaymentsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesRemainingLeasePaymentsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesRemainingLeasePaymentsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b2be39e3-9e78-49c6-8180-b3c15db1a73d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_ee1e62bd-1240-45cf-b907-fe0e9a12dd61" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b2be39e3-9e78-49c6-8180-b3c15db1a73d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_ee1e62bd-1240-45cf-b907-fe0e9a12dd61" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_61c06d89-20e5-4efc-a64d-c0ed2c1e35a3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiability"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b2be39e3-9e78-49c6-8180-b3c15db1a73d" xlink:to="loc_us-gaap_FinanceLeaseLiability_61c06d89-20e5-4efc-a64d-c0ed2c1e35a3" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_8d107202-1fc0-47c8-ac7c-d2992280f10c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_8d107202-1fc0-47c8-ac7c-d2992280f10c" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_4e547bf9-2c12-4d2a-a87c-0422583df514" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_4e547bf9-2c12-4d2a-a87c-0422583df514" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_694f9958-46fb-4552-8e7a-39bf0391f160" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_694f9958-46fb-4552-8e7a-39bf0391f160" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_eb2ee4fb-97df-4c45-90b6-7c83f09682a3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_eb2ee4fb-97df-4c45-90b6-7c83f09682a3" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_efdcb91b-a596-44ba-892c-8c6efa19976d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_efdcb91b-a596-44ba-892c-8c6efa19976d" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_fcabe63f-a421-4a8e-8b55-c109f5a2909c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_47c11eb4-7ef7-40dc-910c-4f2ce8ccc62b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_fcabe63f-a421-4a8e-8b55-c109f5a2909c" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/LeasesRemainingLeasePaymentsDetails_1" xlink:type="simple" xlink:href="flr-20201231.xsd#LeasesRemainingLeasePaymentsDetails_1"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/LeasesRemainingLeasePaymentsDetails_1" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_1619ed0a-96cb-41f0-b425-d961a2b178be" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_1619ed0a-96cb-41f0-b425-d961a2b178be" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_3302b8aa-4366-48cc-81a4-d65e32595cc0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_3302b8aa-4366-48cc-81a4-d65e32595cc0" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_997beb41-2cde-480a-bdf4-fc7555044cd2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_997beb41-2cde-480a-bdf4-fc7555044cd2" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_1a32fa17-d84b-490c-92e8-6282b18242c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_1a32fa17-d84b-490c-92e8-6282b18242c3" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_09473c3f-eac3-473d-ac69-5668661edd08" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive"/>
<link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_09473c3f-eac3-473d-ac69-5668661edd08" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_38f8fbd3-a9ac-4e59-a495-aae3f31312f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive"/>
<link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_acdb16d4-5f10-406b-b4a0-c4e2f15114ce" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_38f8fbd3-a9ac-4e59-a495-aae3f31312f0" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b90a5a30-6a8c-4638-aaec-2c645dfdbdc7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_bd13b6dd-2a69-4101-ba7b-f1bb501e1283" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b90a5a30-6a8c-4638-aaec-2c645dfdbdc7" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_bd13b6dd-2a69-4101-ba7b-f1bb501e1283" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_8031b993-e17b-4fd9-9959-3da80698889e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiability"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b90a5a30-6a8c-4638-aaec-2c645dfdbdc7" xlink:to="loc_us-gaap_OperatingLeaseLiability_8031b993-e17b-4fd9-9959-3da80698889e" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/DerivativesandHedging" xlink:type="simple" xlink:href="flr-20201231.xsd#DerivativesandHedging"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DerivativesandHedging" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DerivativesandHedgingTables" xlink:type="simple" xlink:href="flr-20201231.xsd#DerivativesandHedgingTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DerivativesandHedgingTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DerivativesandHedgingNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DerivativesandHedgingNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DerivativesandHedgingNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DerivativesandHedgingNotionalAmountsandFairValuesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DerivativesandHedgingNotionalAmountsandFairValuesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DerivativesandHedgingNotionalAmountsandFairValuesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DerivativesandHedgingGainsLossesAssociatedwithCashFlowHedgesDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DerivativesandHedgingGainsLossesAssociatedwithCashFlowHedgesDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DerivativesandHedgingGainsLossesAssociatedwithCashFlowHedgesDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OtherComprehensiveIncomeLoss" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherComprehensiveIncomeLoss"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherComprehensiveIncomeLoss" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OtherComprehensiveIncomeLossTables" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherComprehensiveIncomeLossTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherComprehensiveIncomeLossTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/OtherComprehensiveIncomeLossTaxEffectsofComponentsofOtherComprehensiveIncomeLossDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherComprehensiveIncomeLossTaxEffectsofComponentsofOtherComprehensiveIncomeLossDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherComprehensiveIncomeLossTaxEffectsofComponentsofOtherComprehensiveIncomeLossDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_3f81b083-90af-45bb-8860-c79b51a41c7f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_5f93d9f6-1b9e-447b-91aa-8482a2997899" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTax"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_3f81b083-90af-45bb-8860-c79b51a41c7f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_5f93d9f6-1b9e-447b-91aa-8482a2997899" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_53278e7b-9377-407a-ab4b-6ecfc8dd8e45" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_3f81b083-90af-45bb-8860-c79b51a41c7f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_53278e7b-9377-407a-ab4b-6ecfc8dd8e45" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/OtherComprehensiveIncomeLossChangesinAOCIBalancesbyComponentDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherComprehensiveIncomeLossChangesinAOCIBalancesbyComponentDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherComprehensiveIncomeLossChangesinAOCIBalancesbyComponentDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_61ae4202-c260-4282-97f6-7d20b2b714ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_b6bcef63-3a53-481d-bd48-34ca2e8a3617" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_61ae4202-c260-4282-97f6-7d20b2b714ac" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_b6bcef63-3a53-481d-bd48-34ca2e8a3617" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_8b9069e9-49d3-414b-8407-a695337438b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_61ae4202-c260-4282-97f6-7d20b2b714ac" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_8b9069e9-49d3-414b-8407-a695337438b1" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/OtherComprehensiveIncomeLossSignificantItemsReclassifiedOutofAOCIDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#OtherComprehensiveIncomeLossSignificantItemsReclassifiedOutofAOCIDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/OtherComprehensiveIncomeLossSignificantItemsReclassifiedOutofAOCIDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DiscontinuedOperations" xlink:type="simple" xlink:href="flr-20201231.xsd#DiscontinuedOperations"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DiscontinuedOperations" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DiscontinuedOperationsTables" xlink:type="simple" xlink:href="flr-20201231.xsd#DiscontinuedOperationsTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DiscontinuedOperationsTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DiscontinuedOperationsNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DiscontinuedOperationsNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DiscontinuedOperationsNarrativeDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/DiscontinuedOperationsEarningsFromDiscontinuedOperationsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DiscontinuedOperationsEarningsFromDiscontinuedOperationsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DiscontinuedOperationsEarningsFromDiscontinuedOperationsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_e32e9b0b-52c2-4e4f-beab-eb568ad9f4f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_ed52afc5-4317-4f45-9dc0-c90485417548" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_e32e9b0b-52c2-4e4f-beab-eb568ad9f4f0" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_ed52afc5-4317-4f45-9dc0-c90485417548" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_1dc66327-73de-4609-8650-978a269151ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_e32e9b0b-52c2-4e4f-beab-eb568ad9f4f0" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_1dc66327-73de-4609-8650-978a269151ac" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_26edcf5c-61c5-4fcf-9a1f-a198fc5b12ca" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_55cd84a3-5976-41b1-b07d-915f89b57e01" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_26edcf5c-61c5-4fcf-9a1f-a198fc5b12ca" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_55cd84a3-5976-41b1-b07d-915f89b57e01" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_0efd61bb-0b8d-4316-b7cf-a60e1cc9d2ef" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation"/>
<link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_26edcf5c-61c5-4fcf-9a1f-a198fc5b12ca" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_0efd61bb-0b8d-4316-b7cf-a60e1cc9d2ef" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_79d8303e-58b5-42f4-8994-ec515d7c8a4b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_8f9b7f57-cdbf-4a3c-9012-ceba9d97a7fb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_79d8303e-58b5-42f4-8994-ec515d7c8a4b" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_8f9b7f57-cdbf-4a3c-9012-ceba9d97a7fb" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DisposalGroupIncludingDiscontinuedOperationImpairmentOfAssetsHeldForSale_2c9e1297-0d06-48e2-8e19-408530e12274" xlink:href="flr-20201231.xsd#flr_DisposalGroupIncludingDiscontinuedOperationImpairmentOfAssetsHeldForSale"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_79d8303e-58b5-42f4-8994-ec515d7c8a4b" xlink:to="loc_flr_DisposalGroupIncludingDiscontinuedOperationImpairmentOfAssetsHeldForSale_2c9e1297-0d06-48e2-8e19-408530e12274" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_a43a7854-ceb7-45c4-8294-4d7f32444605" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_79d8303e-58b5-42f4-8994-ec515d7c8a4b" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_a43a7854-ceb7-45c4-8294-4d7f32444605" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DisposalGroupIncludingDiscontinuedOperationInterestExpenseIncome_1d4a9c6d-6bcb-423d-8c10-822a8731ebd6" xlink:href="flr-20201231.xsd#flr_DisposalGroupIncludingDiscontinuedOperationInterestExpenseIncome"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_79d8303e-58b5-42f4-8994-ec515d7c8a4b" xlink:to="loc_flr_DisposalGroupIncludingDiscontinuedOperationInterestExpenseIncome_1d4a9c6d-6bcb-423d-8c10-822a8731ebd6" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/DiscontinuedOperationsAssetsandLiabilitiesHeldforSaleDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DiscontinuedOperationsAssetsandLiabilitiesHeldforSaleDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DiscontinuedOperationsAssetsandLiabilitiesHeldforSaleDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_32e163f5-baa7-4786-aa21-9caff453de3d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_70a03f8c-8369-4811-962a-304460799bd0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_32e163f5-baa7-4786-aa21-9caff453de3d" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_70a03f8c-8369-4811-962a-304460799bd0" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_bc05822a-e710-42f2-8448-4e6bee9bb469" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_32e163f5-baa7-4786-aa21-9caff453de3d" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_bc05822a-e710-42f2-8448-4e6bee9bb469" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DisposalGroupIncludingDiscontinuedOperationInvestments_07b8619b-daa6-4fd4-bd07-f33c838dc281" xlink:href="flr-20201231.xsd#flr_DisposalGroupIncludingDiscontinuedOperationInvestments"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_32e163f5-baa7-4786-aa21-9caff453de3d" xlink:to="loc_flr_DisposalGroupIncludingDiscontinuedOperationInvestments_07b8619b-daa6-4fd4-bd07-f33c838dc281" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets_e2d3da43-b272-4f2d-8dc2-a6b17936a7d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_32e163f5-baa7-4786-aa21-9caff453de3d" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets_e2d3da43-b272-4f2d-8dc2-a6b17936a7d8" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_ec81ab91-0b0e-42b9-8ed8-11ce4a7ed396" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_ddc1e358-7745-41c6-974f-bbf31e1b2a6a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_ec81ab91-0b0e-42b9-8ed8-11ce4a7ed396" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_ddc1e358-7745-41c6-974f-bbf31e1b2a6a" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_56cdc2ee-82f4-49eb-b22f-b3e3a3162425" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_ec81ab91-0b0e-42b9-8ed8-11ce4a7ed396" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_56cdc2ee-82f4-49eb-b22f-b3e3a3162425" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_flr_DisposalGroupIncludingDiscontinuedOperationAccruedSalariesWagesandBenefitsCurrent_9b0c9281-efa7-4b4b-a74d-84cad8c33224" xlink:href="flr-20201231.xsd#flr_DisposalGroupIncludingDiscontinuedOperationAccruedSalariesWagesandBenefitsCurrent"/>
<link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_ec81ab91-0b0e-42b9-8ed8-11ce4a7ed396" xlink:to="loc_flr_DisposalGroupIncludingDiscontinuedOperationAccruedSalariesWagesandBenefitsCurrent_9b0c9281-efa7-4b4b-a74d-84cad8c33224" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_d747461f-6324-47bf-802b-37757c8b257b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
<link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_ec81ab91-0b0e-42b9-8ed8-11ce4a7ed396" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_d747461f-6324-47bf-802b-37757c8b257b" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_41dbab81-689d-4c9b-af35-9bec8c46fe6e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4faeddf2-f135-4fd7-9249-37c1666b3c08" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_41dbab81-689d-4c9b-af35-9bec8c46fe6e" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4faeddf2-f135-4fd7-9249-37c1666b3c08" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_72f5d0e8-07ac-4732-84a2-51721e636518" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_41dbab81-689d-4c9b-af35-9bec8c46fe6e" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_72f5d0e8-07ac-4732-84a2-51721e636518" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_7a85481f-0a92-4776-b205-c1a8cf2058ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_d59bb032-e7b2-4673-b286-e9bfe59ee2c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_7a85481f-0a92-4776-b205-c1a8cf2058ad" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_d59bb032-e7b2-4673-b286-e9bfe59ee2c9" xlink:type="arc"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_1c922a96-d888-42c5-b112-550fc9cbc234" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
<link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_7a85481f-0a92-4776-b205-c1a8cf2058ad" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_1c922a96-d888-42c5-b112-550fc9cbc234" xlink:type="arc"/>
</link:calculationLink>
<link:roleRef roleURI="http://www.fluor.com/role/DiscontinuedOperationsConsolidatedStatementsofCashFlowsfortheDiscontinuedOperationsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#DiscontinuedOperationsConsolidatedStatementsofCashFlowsfortheDiscontinuedOperationsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/DiscontinuedOperationsConsolidatedStatementsofCashFlowsfortheDiscontinuedOperationsDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/QuarterlyFinancialDataUnaudited" xlink:type="simple" xlink:href="flr-20201231.xsd#QuarterlyFinancialDataUnaudited"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/QuarterlyFinancialDataUnaudited" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/QuarterlyFinancialDataUnauditedTables" xlink:type="simple" xlink:href="flr-20201231.xsd#QuarterlyFinancialDataUnauditedTables"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/QuarterlyFinancialDataUnauditedTables" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/QuarterlyFinancialDataUnauditedSummaryofQuarterlyResultsofOperationsDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#QuarterlyFinancialDataUnauditedSummaryofQuarterlyResultsofOperationsDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/QuarterlyFinancialDataUnauditedSummaryofQuarterlyResultsofOperationsDetails" xlink:type="extended"/>
<link:roleRef roleURI="http://www.fluor.com/role/QuarterlyFinancialDataUnauditedNarrativeDetails" xlink:type="simple" xlink:href="flr-20201231.xsd#QuarterlyFinancialDataUnauditedNarrativeDetails"/>
<link:calculationLink xlink:role="http://www.fluor.com/role/QuarterlyFinancialDataUnauditedNarrativeDetails" xlink:type="extended"/>
</link:linkbase>


6 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/20/24  Fluor Corp.                       10-K       12/31/23  117:12M                                    Workiva Inc Wde… FA01/FA
 2/21/23  Fluor Corp.                       10-K       12/31/22  122:15M                                    Workiva Inc Wde… FA01/FA
 2/22/22  Fluor Corp.                       10-K       12/31/21  137:21M                                    Workiva Inc Wde… FA01/FA
11/05/21  Fluor Corp.                       S-8        11/05/21    4:160K                                   Toppan Merrill/FA
 5/07/21  Fluor Corp.                       10-Q/A      3/31/21   93:9.9M                                   Workiva Inc Wde… FA01/FA
 5/07/21  Fluor Corp.                       10-Q        3/31/21   92:9.9M                                   Workiva Inc Wde… FA01/FA


35 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

12/28/20  Fluor Corp.                       8-K:1,3,9  12/22/20   12:255K                                   Toppan Merrill/FA
12/17/20  Fluor Corp.                       S-8        12/17/20    4:270K                                   Toppan Merrill/FA
12/10/20  Fluor Corp.                       10-Q        9/30/20   90:13M                                    Workiva Inc Wde… FA01/FA
 9/25/20  Fluor Corp.                       10-K       12/31/19  157:42M                                    Workiva Inc Wde… FA01/FA
 9/21/20  Fluor Corp.                       8-K:1,7,9   9/17/20   13:413K                                   Toppan Merrill/FA
 8/03/20  Fluor Corp.                       8-K:1,3,9   7/29/20   12:246K                                   Toppan Merrill/FA
 7/08/20  Fluor Corp.                       8-K:1,9     7/07/20   12:398K                                   Toppan Merrill/FA
 4/03/20  Fluor Corp.                       8-K:1,9     4/02/20   12:417K                                   Toppan Merrill/FA
 3/25/20  Fluor Corp.                       8-K:1,3,5,8 3/24/20   13:770K                                   Toppan Merrill/FA
10/31/19  Fluor Corp.                       10-Q        9/30/19   99:14M                                    Workiva Inc Wde… FA01/FA
 8/29/18  Fluor Corp.                       8-K:1,8,9   8/29/18    3:258K                                   Toppan Merrill/FA
 8/23/18  Fluor Corp.                       8-K:1,8,9   8/20/18    4:558K                                   Toppan Merrill/FA
 8/02/18  Fluor Corp.                       10-Q        6/30/18   82:9.9M                                   Toppan Merrill/FA
 5/03/18  Fluor Corp.                       10-Q        3/31/18   84:7.9M                                   Toppan Merrill/FA
11/02/17  Fluor Corp.                       10-Q        9/30/17   83:9.7M                                   Toppan Merrill/FA
 8/03/17  Fluor Corp.                       10-Q        6/30/17   83:9.6M                                   Toppan Merrill/FA
 5/04/17  Fluor Corp.                       S-8         5/04/17    4:243K                                   Toppan Merrill/FA
 2/17/17  Fluor Corp.                       10-K       12/31/16  133:21M                                    Toppan Merrill-FA
 5/05/16  Fluor Corp.                       10-Q        3/31/16   85:7.8M                                   Toppan Merrill/FA
 3/21/16  Fluor Corp.                       8-K:1,2,8,9 3/21/16    3:300K                                   Toppan Merrill/FA
 3/02/16  Fluor Corp.                       8-K:1,2,7,9 2/25/16    4:2.5M                                   Toppan Merrill/FA
 2/09/16  Fluor Corp.                       8-K:5,9     2/03/16    2:182K                                   Toppan Merrill/FA
 4/30/15  Fluor Corp.                       10-Q        3/31/15   74:9M                                     Toppan Merrill/FA
11/25/14  Fluor Corp.                       8-K:1,2,8,911/25/14    3:242K                                   Toppan Merrill/FA
 5/03/13  Fluor Corp.                       8-K:5,9     5/02/13    2:186K                                   Toppan Merrill/FA
 6/22/12  Fluor Corp.                       S-3ASR      6/22/12    6:517K                                   Toppan Merrill-FA
 5/08/12  Fluor Corp.                       8-K:5,9     5/03/12    3:205K                                   Toppan Merrill/FA
 2/22/12  Fluor Corp.                       10-K       12/31/11   89:14M                                    Toppan Merrill-FA
 9/13/11  Fluor Corp.                       8-K:1,2,9   9/13/11    2:201K                                   Toppan Merrill/FA
 9/08/11  Fluor Corp.                       8-K:8,9     9/07/11    2:578K                                   Toppan Merrill/FA
 6/29/10  Fluor Corp.                       8-K:5,9     6/23/10    3:198K                                   Toppan Merrill/FA
 2/25/09  Fluor Corp.                       10-K       12/31/08   16:2.9M                                   Toppan Merrill-FA
 2/29/08  Fluor Corp.                       10-K       12/31/07   12:1.6M                                   Toppan Merrill-FA
 3/31/03  Fluor Corp.                       10-K       12/31/02   11:1.3M                                   Bowne - Biv/FA
11/22/00  Fluor Corp.                       10-12B/A              23:1.2M                                   Donnelley … Solutions/FA
Top
Filing Submission 0001628280-21-003360   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Tue., May 14, 12:27:34.5pm ET