<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e2c8b-91ba-715e-845a-bc3c11cd046f,g:d7fe0657-df9b-49de-840e-3fd51e646e81-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.everus.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="simple" xlink:href="ecg-20260630.xsd#CondensedConsolidatedStatementsofIncome"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2c8b-9340-7b98-9f93-e9a62294362c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-73b2-9deb-e4e57190e0d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2c8b-9340-7b98-9f93-e9a62294362c" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-73b2-9deb-e4e57190e0d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e2c8b-9340-7da9-ae0b-3a72e011bf21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2c8b-9340-7b98-9f93-e9a62294362c" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e2c8b-9340-7da9-ae0b-3a72e011bf21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e2c8b-9340-70ef-a337-c69edb607cc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2c8b-9340-7b98-9f93-e9a62294362c" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e2c8b-9340-70ef-a337-c69edb607cc9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e2c8b-9340-78d9-84bb-252dad6013a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019e2c8b-9340-7435-9db8-df3e4547cb30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e2c8b-9340-78d9-84bb-252dad6013a1" xlink:to="loc_us-gaap_GrossProfit_019e2c8b-9340-7435-9db8-df3e4547cb30" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2c8b-9340-72fa-b7ee-02fc09fa6b2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e2c8b-9340-78d9-84bb-252dad6013a1" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2c8b-9340-72fa-b7ee-02fc09fa6b2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-71a6-8053-406203fdb6eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e2c8b-9340-7a5c-8081-6e2df647cb9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-71a6-8053-406203fdb6eb" xlink:to="loc_us-gaap_OperatingIncomeLoss_019e2c8b-9340-7a5c-8081-6e2df647cb9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019e2c8b-9340-77bf-91be-fd0fbb98dfa2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-71a6-8053-406203fdb6eb" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019e2c8b-9340-77bf-91be-fd0fbb98dfa2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019e2c8b-9340-7b16-a6d1-38da9fcf384a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-71a6-8053-406203fdb6eb" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019e2c8b-9340-7b16-a6d1-38da9fcf384a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncome_019e2c8b-9340-7fd9-b7a8-2fde0e961945" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIncome"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e2c8b-9340-71a6-8053-406203fdb6eb" xlink:to="loc_us-gaap_OtherIncome_019e2c8b-9340-7fd9-b7a8-2fde0e961945" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019e2c8b-9340-7dea-b483-f241856c2eec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2c8b-9340-787b-bbab-861fb954773c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019e2c8b-9340-7dea-b483-f241856c2eec" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2c8b-9340-787b-bbab-861fb954773c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019e2c8b-9340-7a39-9ffd-1fa082dd5b40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019e2c8b-9340-7dea-b483-f241856c2eec" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019e2c8b-9340-7a39-9ffd-1fa082dd5b40" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="ecg-20260630.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e2c8b-9340-73d8-abb7-d426b17fb358" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e2c8b-9340-73d8-abb7-d426b17fb358" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_019e2c8b-9340-79f1-8a20-78c1f1f82b4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:to="loc_us-gaap_ReceivablesNetCurrent_019e2c8b-9340-79f1-8a20-78c1f1f82b4c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019e2c8b-9340-7575-a964-e6d5e82f514e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019e2c8b-9340-7575-a964-e6d5e82f514e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e2c8b-9340-70f5-bc50-06cc9f08ffcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:to="loc_us-gaap_InventoryNet_019e2c8b-9340-70f5-bc50-06cc9f08ffcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_019e2c8b-9340-7539-9e18-1da599705109" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_019e2c8b-9340-7539-9e18-1da599705109" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019e2c8b-9340-7ce6-b1e8-40b678617047" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2c8b-9340-74ec-aa93-05bb8c13c2a4" xlink:to="loc_us-gaap_OtherAssetsCurrent_019e2c8b-9340-7ce6-b1e8-40b678617047" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2c8b-9340-734d-be35-c3230686feca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_019e2c8b-9340-7d8f-9080-b1c2db48c9f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValueOutstanding"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2c8b-9340-734d-be35-c3230686feca" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_019e2c8b-9340-7d8f-9080-b1c2db48c9f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_019e2c8b-9340-79be-95c3-3d51c858b00d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2c8b-9340-734d-be35-c3230686feca" xlink:to="loc_us-gaap_CommonStockValueOutstanding_019e2c8b-9340-79be-95c3-3d51c858b00d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019e2c8b-9340-7d30-ac3b-8eb1f2b908fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2c8b-9340-734d-be35-c3230686feca" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019e2c8b-9340-7d30-ac3b-8eb1f2b908fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e2c8b-9340-7a12-9c2e-20714345eeb4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2c8b-9340-734d-be35-c3230686feca" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e2c8b-9340-7a12-9c2e-20714345eeb4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019e2c8b-9340-7460-934f-e84642300543" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_LongTermDebtCurrent_019e2c8b-9340-7460-934f-e84642300543" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019e2c8b-9340-7f6e-a556-c45928d8f30a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_AccountsPayableCurrent_019e2c8b-9340-7f6e-a556-c45928d8f30a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2c8b-9340-7d46-8065-e023e47bad82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2c8b-9340-7d46-8065-e023e47bad82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_019e2c8b-9340-7a8f-aa78-e8b0654aa77d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_TaxesPayableCurrent_019e2c8b-9340-7a8f-aa78-e8b0654aa77d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_AccruedCompensationCurrent_019e2c8b-9340-7699-bb9c-88946a55ed37" xlink:href="ecg-20260630.xsd#ecg_AccruedCompensationCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_ecg_AccruedCompensationCurrent_019e2c8b-9340-7699-bb9c-88946a55ed37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherEmployeeRelatedLiabilitiesCurrent_019e2c8b-9340-796e-aae0-4f1be54dd75f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherEmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_OtherEmployeeRelatedLiabilitiesCurrent_019e2c8b-9340-796e-aae0-4f1be54dd75f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e2c8b-9340-7601-9d25-0950d5aee39c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e2c8b-9340-7601-9d25-0950d5aee39c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019e2c8b-9340-7a0e-8e08-a66d8f21bd0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7f78-b12c-48abaac14ff2" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019e2c8b-9340-7a0e-8e08-a66d8f21bd0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e2c8b-9340-7667-a995-b49e0d47f1f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7296-9f49-fcd085ab02b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2c8b-9340-7667-a995-b49e0d47f1f1" xlink:to="loc_us-gaap_LiabilitiesCurrent_019e2c8b-9340-7296-9f49-fcd085ab02b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-75a0-9fc2-9e745136a69b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2c8b-9340-7667-a995-b49e0d47f1f1" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-75a0-9fc2-9e745136a69b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2c8b-9340-7962-9594-226832440367" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e2c8b-9340-755d-af71-31fb1dcc8f37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2c8b-9340-7962-9594-226832440367" xlink:to="loc_us-gaap_Liabilities_019e2c8b-9340-755d-af71-31fb1dcc8f37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019e2c8b-9340-76eb-99a9-14e935e55b37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2c8b-9340-7962-9594-226832440367" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019e2c8b-9340-76eb-99a9-14e935e55b37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2c8b-9340-7267-a15a-d9d42cd9e0b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2c8b-9340-7962-9594-226832440367" xlink:to="loc_us-gaap_StockholdersEquity_019e2c8b-9340-7267-a15a-d9d42cd9e0b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e2c8b-9340-77a5-a8b2-22b82bfc05f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e2c8b-9340-7213-8c3d-f643f086161c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2c8b-9340-77a5-a8b2-22b82bfc05f3" xlink:to="loc_us-gaap_AssetsCurrent_019e2c8b-9340-7213-8c3d-f643f086161c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7b0c-a795-1eeada82ae09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2c8b-9340-77a5-a8b2-22b82bfc05f3" xlink:to="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7b0c-a795-1eeada82ae09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-7ed7-8d98-9a9978982686" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019e2c8b-9340-7ed9-890f-027e9f1b165a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-7ed7-8d98-9a9978982686" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019e2c8b-9340-7ed9-890f-027e9f1b165a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e2c8b-9340-71ba-ad2a-a896ea2d095a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-7ed7-8d98-9a9978982686" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e2c8b-9340-71ba-ad2a-a896ea2d095a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e2c8b-9340-74c7-8718-d0b1c85b94d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-7ed7-8d98-9a9978982686" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e2c8b-9340-74c7-8718-d0b1c85b94d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019e2c8b-9340-7eb4-adee-c130af8aef17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_019e2c8b-9340-7ed7-8d98-9a9978982686" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019e2c8b-9340-7eb4-adee-c130af8aef17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_019e2c8b-9340-74b3-a0fa-5aa3fa407bbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:to="loc_us-gaap_LongTermInvestments_019e2c8b-9340-74b3-a0fa-5aa3fa407bbb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019e2c8b-9340-710b-8311-3390b7a3f515" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019e2c8b-9340-710b-8311-3390b7a3f515" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e2c8b-9340-7d97-8dff-87f70e66f967" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e2c8b-9340-7d97-8dff-87f70e66f967" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e2c8b-9340-7c4e-83fa-0dabd4fb2881" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:to="loc_us-gaap_Goodwill_019e2c8b-9340-7c4e-83fa-0dabd4fb2881" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f3947-760b-75d6-b02f-149049efdc93" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f3947-760b-75d6-b02f-149049efdc93" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019e2c8b-9340-7555-9fe2-5845ddfcafb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_019e2c8b-9340-7bff-bb0f-d34192dedd72" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019e2c8b-9340-7555-9fe2-5845ddfcafb0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="ecg-20260630.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2c8b-9340-7d8a-95da-daa561be3b1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-765d-9dea-5c47c8b7e13e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2c8b-9340-7d8a-95da-daa561be3b1c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-765d-9dea-5c47c8b7e13e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-79cb-8783-1ed30226a023" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2c8b-9340-7d8a-95da-daa561be3b1c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-79cb-8783-1ed30226a023" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2c8b-9340-75eb-b48b-f81038364b73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2c8b-9340-7d8a-95da-daa561be3b1c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2c8b-9340-75eb-b48b-f81038364b73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2c8b-9340-782a-99be-7632cd3a0399" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019e2c8b-9340-7a45-954a-c4c8f9e9a140" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2c8b-9340-782a-99be-7632cd3a0399" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019e2c8b-9340-7a45-954a-c4c8f9e9a140" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019e2c8b-9340-733e-bd90-9867dbe13439" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2c8b-9340-782a-99be-7632cd3a0399" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019e2c8b-9340-733e-bd90-9867dbe13439" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-7ac0-ba75-79a7c7a3819c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_019e2c8b-9340-7881-839f-4a14a8577c5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-7ac0-ba75-79a7c7a3819c" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_019e2c8b-9340-7881-839f-4a14a8577c5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_019e2c8b-9340-74c0-8cfa-e58a52b7435f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-7ac0-ba75-79a7c7a3819c" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_019e2c8b-9340-74c0-8cfa-e58a52b7435f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019f394d-b7c0-797c-8d10-76d980dfb47a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-7ac0-ba75-79a7c7a3819c" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019f394d-b7c0-797c-8d10-76d980dfb47a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLifeInsurancePolicies_019e2c8b-9340-7414-8f88-fc84cfef777f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLifeInsurancePolicies"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-7ac0-ba75-79a7c7a3819c" xlink:to="loc_us-gaap_ProceedsFromLifeInsurancePolicies_019e2c8b-9340-7414-8f88-fc84cfef777f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2c8b-9340-799b-8490-4ac47fe9085f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromInvestments"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2c8b-9340-7ac0-ba75-79a7c7a3819c" xlink:to="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2c8b-9340-799b-8490-4ac47fe9085f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2c8b-9340-73e6-9481-b210d1fcd58d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_NetIncomeLoss_019e2c8b-9340-73e6-9481-b210d1fcd58d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019e2c8b-9340-7700-996a-0d1bc0375035" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_Depreciation_019e2c8b-9340-7700-996a-0d1bc0375035" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019e2c8b-9340-7866-995c-aa415ef0caaf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019e2c8b-9340-7866-995c-aa415ef0caaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e2c8b-9340-788c-b887-ac4f2287a3ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e2c8b-9340-788c-b887-ac4f2287a3ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_019e2c8b-9340-727d-bc44-5a2bc6da3563" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_019e2c8b-9340-727d-bc44-5a2bc6da3563" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_019e2c8b-9340-74be-bae7-54e03ea9df64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_019e2c8b-9340-74be-bae7-54e03ea9df64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e2c8b-9340-7101-9636-84a7365f3dd4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_ShareBasedCompensation_019e2c8b-9340-7101-9636-84a7365f3dd4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments_019e2c8b-9340-76a3-8a49-59d25345c798" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestments_019e2c8b-9340-76a3-8a49-59d25345c798" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_019e2c8b-9340-72ef-b38e-7a32fddfae0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_019e2c8b-9340-72ef-b38e-7a32fddfae0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_019e2c8b-9340-7d4d-a836-05f0e35bcb95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_019e2c8b-9340-7d4d-a836-05f0e35bcb95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable_019e2c8b-9340-7fa8-a589-2fc6d232adb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable_019e2c8b-9340-7fa8-a589-2fc6d232adb5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_019e2c8b-9340-73ae-90d1-1c9620f63625" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_019e2c8b-9340-73ae-90d1-1c9620f63625" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019e2c8b-9340-7c5f-a36d-cf522067c39b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019e2c8b-9340-7c5f-a36d-cf522067c39b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019e2c8b-9340-7aa5-a84c-efa4e45b792a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019e2c8b-9340-7aa5-a84c-efa4e45b792a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019e2c8b-9340-7137-ab33-4e0e3dbdaeaf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019e2c8b-9340-7137-ab33-4e0e3dbdaeaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e2c8b-9340-7813-b7c0-acbb1e78d73e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e2c8b-9340-7813-b7c0-acbb1e78d73e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_019e2c8b-9340-7808-a1af-39b53af8b304" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_019e2c8b-9340-7808-a1af-39b53af8b304" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_019e2c8b-9340-7a22-b499-cd0cf585f176" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2c8b-9340-741b-80e0-95f6e8a4370f" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_019e2c8b-9340-7a22-b499-cd0cf585f176" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesSummaryofAccountsReceivableDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#BasisofPresentationandSummaryofSignificantAccountingPoliciesSummaryofAccountsReceivableDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesSummaryofAccountsReceivableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ReceivablesGrossCurrent_019e2c8b-9340-78e0-bd54-e881a95f52e5" xlink:href="ecg-20260630.xsd#ecg_ReceivablesGrossCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_019e2c8b-9340-7648-91a0-1ae2a8de36bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ecg_ReceivablesGrossCurrent_019e2c8b-9340-78e0-bd54-e881a95f52e5" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_019e2c8b-9340-7648-91a0-1ae2a8de36bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesGrossCurrent_019e2c8b-9340-7946-ae45-e48c1e36e5fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherReceivablesGrossCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ecg_ReceivablesGrossCurrent_019e2c8b-9340-78e0-bd54-e881a95f52e5" xlink:to="loc_us-gaap_OtherReceivablesGrossCurrent_019e2c8b-9340-7946-ae45-e48c1e36e5fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_019e2c8b-9340-7a97-b05b-1116e6daa61c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ReceivablesGrossCurrent_019e2c8b-9340-7d9d-a9d5-7b8ab9aec8bf" xlink:href="ecg-20260630.xsd#ecg_ReceivablesGrossCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ReceivablesNetCurrent_019e2c8b-9340-7a97-b05b-1116e6daa61c" xlink:to="loc_ecg_ReceivablesGrossCurrent_019e2c8b-9340-7d9d-a9d5-7b8ab9aec8bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ReceivablesAllowanceForCreditLossCurrent_019e2c8b-9340-7a5d-9530-eb9d50d8185f" xlink:href="ecg-20260630.xsd#ecg_ReceivablesAllowanceForCreditLossCurrent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ReceivablesNetCurrent_019e2c8b-9340-7a97-b05b-1116e6daa61c" xlink:to="loc_ecg_ReceivablesAllowanceForCreditLossCurrent_019e2c8b-9340-7a5d-9530-eb9d50d8185f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesInventoryDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#BasisofPresentationandSummaryofSignificantAccountingPoliciesInventoryDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesInventoryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e2c8b-9340-7ed3-b8de-d12dd5a62490" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_019e2c8b-9340-7fb5-a3ce-c7aa28b99d78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterialsAndSupplies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2c8b-9340-7ed3-b8de-d12dd5a62490" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSupplies_019e2c8b-9340-7fb5-a3ce-c7aa28b99d78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcess_019e2c8b-9340-7052-9308-0daf4a31d868" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryWorkInProcess"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2c8b-9340-7ed3-b8de-d12dd5a62490" xlink:to="loc_us-gaap_InventoryWorkInProcess_019e2c8b-9340-7052-9308-0daf4a31d868" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoods_019e2c8b-9340-7df0-a146-c78fa22bc88d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryFinishedGoods"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2c8b-9340-7ed3-b8de-d12dd5a62490" xlink:to="loc_us-gaap_InventoryFinishedGoods_019e2c8b-9340-7df0-a146-c78fa22bc88d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryValuationReserves_019e2c8b-9340-753b-b8bb-71fc1749b3c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryValuationReserves"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2c8b-9340-7ed3-b8de-d12dd5a62490" xlink:to="loc_us-gaap_InventoryValuationReserves_019e2c8b-9340-753b-b8bb-71fc1749b3c2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/RevenuefromContractswithCustomersSummaryofUncompletedContractsandContractAssetsandContractLiabilitiesDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#RevenuefromContractswithCustomersSummaryofUncompletedContractsandContractAssetsandContractLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/RevenuefromContractswithCustomersSummaryofUncompletedContractsandContractAssetsandContractLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ContractWithCustomerAssetLiabilityNetCurrent_019e2c8b-9340-7ec6-bab3-fd81373a6c24" xlink:href="ecg-20260630.xsd#ecg_ContractWithCustomerAssetLiabilityNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings_019e2c8b-9340-7f23-90db-e2693e13532b" xlink:href="ecg-20260630.xsd#ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ecg_ContractWithCustomerAssetLiabilityNetCurrent_019e2c8b-9340-7ec6-bab3-fd81373a6c24" xlink:to="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings_019e2c8b-9340-7f23-90db-e2693e13532b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ConstructionContractorBillingsToDate_019e2c8b-9340-7f95-a451-e76654feafb3" xlink:href="ecg-20260630.xsd#ecg_ConstructionContractorBillingsToDate"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ecg_ContractWithCustomerAssetLiabilityNetCurrent_019e2c8b-9340-7ec6-bab3-fd81373a6c24" xlink:to="loc_ecg_ConstructionContractorBillingsToDate_019e2c8b-9340-7f95-a451-e76654feafb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings_019e2c8b-9340-7783-87cd-ed69f6ced126" xlink:href="ecg-20260630.xsd#ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContracts_019e2c8b-9340-7b79-a3b0-0e4bfaf8f971" xlink:href="ecg-20260630.xsd#ecg_ConstructionContractorCostsIncurredOnUncompletedContracts"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings_019e2c8b-9340-7783-87cd-ed69f6ced126" xlink:to="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContracts_019e2c8b-9340-7b79-a3b0-0e4bfaf8f971" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ConstructionContractorEstimatedEarnings_019e2c8b-9340-76a6-b093-783fd562a698" xlink:href="ecg-20260630.xsd#ecg_ConstructionContractorEstimatedEarnings"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ecg_ConstructionContractorCostsIncurredOnUncompletedContractsAndEstimatedEarnings_019e2c8b-9340-7783-87cd-ed69f6ced126" xlink:to="loc_ecg_ConstructionContractorEstimatedEarnings_019e2c8b-9340-76a6-b093-783fd562a698" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/RevenuefromContractswithCustomersSummaryofContractAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#RevenuefromContractswithCustomersSummaryofContractAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/RevenuefromContractswithCustomersSummaryofContractAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019e2c8b-9340-7234-9a31-c303d25aa7a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledContractsReceivable_019e2c8b-9340-7b84-befe-4b0814bca7de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnbilledContractsReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019e2c8b-9340-7234-9a31-c303d25aa7a8" xlink:to="loc_us-gaap_UnbilledContractsReceivable_019e2c8b-9340-7b84-befe-4b0814bca7de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionContractorReceivableRetainage_019e2c8b-9340-78c9-90f7-a71974f97957" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionContractorReceivableRetainage"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019e2c8b-9340-7234-9a31-c303d25aa7a8" xlink:to="loc_us-gaap_ConstructionContractorReceivableRetainage_019e2c8b-9340-78c9-90f7-a71974f97957" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2c8b-9340-78c1-871f-4ca7a4a0f1b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ContractWithCustomerLiabilityExcludingProvisionForLossOnContractsCurrent_019e2c8b-9340-7d3b-b00f-e86508420f6f" xlink:href="ecg-20260630.xsd#ecg_ContractWithCustomerLiabilityExcludingProvisionForLossOnContractsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2c8b-9340-78c1-871f-4ca7a4a0f1b4" xlink:to="loc_ecg_ContractWithCustomerLiabilityExcludingProvisionForLossOnContractsCurrent_019e2c8b-9340-7d3b-b00f-e86508420f6f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLossOnContracts_019e2c8b-9340-7933-8081-fb52ed44bafa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLossOnContracts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2c8b-9340-78c1-871f-4ca7a4a0f1b4" xlink:to="loc_us-gaap_ProvisionForLossOnContracts_019e2c8b-9340-7933-8081-fb52ed44bafa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ContractContractorReceivableRetainageNettedAgainstContractWithCustomerLiability_019e2c8b-9340-7f6f-9aa0-570634a4371c" xlink:href="ecg-20260630.xsd#ecg_ContractContractorReceivableRetainageNettedAgainstContractWithCustomerLiability"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2c8b-9340-78c1-871f-4ca7a4a0f1b4" xlink:to="loc_ecg_ContractContractorReceivableRetainageNettedAgainstContractWithCustomerLiability_019e2c8b-9340-7f6f-9aa0-570634a4371c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/AcquisitionAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#AcquisitionAssetsAcquiredandLiabilitiesAssumedDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/AcquisitionAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f8161-a1d7-71ac-9123-5bb56dbbd0bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019f8161-a1d7-70ea-b353-6f88b207a82d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f8161-a1d7-71ac-9123-5bb56dbbd0bc" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019f8161-a1d7-70ea-b353-6f88b207a82d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred_019f8161-a1d7-7d02-9d1c-9710e33fa181" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f8161-a1d7-71ac-9123-5bb56dbbd0bc" xlink:to="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred_019f8161-a1d7-7d02-9d1c-9710e33fa181" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationConsiderationTransferredContingentConsideration_019f8161-a1d7-75b2-ab94-ce352bd0166c" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationConsiderationTransferredContingentConsideration"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f8161-a1d7-71ac-9123-5bb56dbbd0bc" xlink:to="loc_ecg_BusinessCombinationConsiderationTransferredContingentConsideration_019f8161-a1d7-75b2-ab94-ce352bd0166c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedAssetAcquiredCashCashEquivalentAndRestrictedCash_019f8175-8aaf-7f95-822d-616944e1b98a" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedAssetAcquiredCashCashEquivalentAndRestrictedCash"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedAssetAcquiredCashCashEquivalentAndRestrictedCash_019f8175-8aaf-7f95-822d-616944e1b98a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019f8175-8aaf-7d9b-8648-396415bf0de5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019f8175-8aaf-7d9b-8648-396415bf0de5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedAssetAcquiredContractAssets_019f8175-8aaf-7d32-b129-2d53e4c32ec4" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedAssetAcquiredContractAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedAssetAcquiredContractAssets_019f8175-8aaf-7d32-b129-2d53e4c32ec4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_019f8175-8aaf-7cf0-981e-3e5f81b8bbfd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_019f8175-8aaf-7cf0-981e-3e5f81b8bbfd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_019f8175-8aaf-7c6c-b60b-4121d7473f34" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_019f8175-8aaf-7c6c-b60b-4121d7473f34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019f8175-8aaf-79e9-b4b3-a83924538434" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019f8175-8aaf-79e9-b4b3-a83924538434" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedAssetAcquiredOperatingLeaseRightOfUseAsset_019f8175-8aaf-71c9-9a0d-204a6fa0bdff" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedAssetAcquiredOperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedAssetAcquiredOperatingLeaseRightOfUseAsset_019f8175-8aaf-71c9-9a0d-204a6fa0bdff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019f8175-8aaf-700f-b89c-c223ebff7c25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019f8175-8aaf-700f-b89c-c223ebff7c25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_019f8175-8aaf-70b0-a585-6bddf80ba699" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_019f8175-8aaf-70b0-a585-6bddf80ba699" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedLiabilityAssumedContractLiability_019f8175-8aaf-7234-8db0-146f4fc86306" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedLiabilityAssumedContractLiability"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedLiabilityAssumedContractLiability_019f8175-8aaf-7234-8db0-146f4fc86306" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationLiability_019f8175-8aaf-7d5c-ae37-d18c3b84b04c" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationLiability"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationLiability_019f8175-8aaf-7d5c-ae37-d18c3b84b04c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollLiability_019f8175-8aaf-756c-b4d3-ac4893371139" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollLiability"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollLiability_019f8175-8aaf-756c-b4d3-ac4893371139" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxPayable_019f8175-8aaf-7ed1-9cc2-39dbd303f52d" xlink:href="ecg-20260630.xsd#ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxPayable"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_ecg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxPayable_019f8175-8aaf-7ed1-9cc2-39dbd303f52d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_019f8175-8aaf-7921-87d3-ea34d9a42594" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_019f8175-8aaf-7921-87d3-ea34d9a42594" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation_019f8175-8aaf-7ebe-ba59-5b67a5685da6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-8aaf-7358-a297-05d665a55e0a" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation_019f8175-8aaf-7ebe-ba59-5b67a5685da6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019f8175-b1a1-75a5-a030-a02e2e9a5b50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-b1a1-72bc-bb79-bdc8a2d46170" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019f8175-b1a1-75a5-a030-a02e2e9a5b50" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019f8175-b1a1-72bc-bb79-bdc8a2d46170" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019f8175-b1a1-79ba-8153-c6e413824a85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019f8175-b1a1-75a5-a030-a02e2e9a5b50" xlink:to="loc_us-gaap_Goodwill_019f8175-b1a1-79ba-8153-c6e413824a85" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/GoodwillandOtherIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#GoodwillandOtherIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/GoodwillandOtherIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e2c8b-9413-70e5-8027-0ad02cd7589e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e2c8b-9413-7410-8b1c-bda9261172d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e2c8b-9413-70e5-8027-0ad02cd7589e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e2c8b-9413-7410-8b1c-bda9261172d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e2c8b-9414-7a6d-8c2b-e2993b5967fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e2c8b-9413-70e5-8027-0ad02cd7589e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e2c8b-9414-7a6d-8c2b-e2993b5967fe" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/GoodwillandOtherIntangibleAssetsNetScheduleofAmortizationExpenseforFiniteLivedIntangibleAssetsDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#GoodwillandOtherIntangibleAssetsNetScheduleofAmortizationExpenseforFiniteLivedIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/GoodwillandOtherIntangibleAssetsNetScheduleofAmortizationExpenseforFiniteLivedIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019f3962-a229-7c6b-926a-d0eb1299199a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019f3962-a229-7c6b-926a-d0eb1299199a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019f3962-a229-754a-8892-60ef6b9c14a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019f3962-a229-754a-8892-60ef6b9c14a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019f3962-a229-73b3-a162-6964e06bcc4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019f3962-a229-73b3-a162-6964e06bcc4c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019f3962-a229-76d4-8b9d-051572195a25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019f3962-a229-76d4-8b9d-051572195a25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019f3962-a229-7caa-abb8-72de90887b55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019f3962-a229-7caa-abb8-72de90887b55" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019f3962-a229-759a-876d-ad9615dfc35d" xlink:href="ecg-20260630.xsd#ecg_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f3962-a229-7b32-942c-0c935641168e" xlink:to="loc_ecg_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019f3962-a229-759a-876d-ad9615dfc35d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/FairValueMeasurementsScheduleofAssetsMeasuredonaRecurringBasisDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#FairValueMeasurementsScheduleofAssetsMeasuredonaRecurringBasisDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/FairValueMeasurementsScheduleofAssetsMeasuredonaRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019f3972-455c-7cbb-8b63-72f904dbb80d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_ContingentConsiderationLiabilityFairValueDisclosure_019f3972-455c-727f-9c00-06669c09d401" xlink:href="ecg-20260630.xsd#ecg_ContingentConsiderationLiabilityFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_019f3972-455c-7cbb-8b63-72f904dbb80d" xlink:to="loc_ecg_ContingentConsiderationLiabilityFairValueDisclosure_019f3972-455c-727f-9c00-06669c09d401" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e2c8b-9414-7539-8d0c-77f5b2540797" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_019e2c8b-9414-7d62-b105-10f4090a92f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e2c8b-9414-7539-8d0c-77f5b2540797" xlink:to="loc_us-gaap_InvestmentsFairValueDisclosure_019e2c8b-9414-7d62-b105-10f4090a92f4" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/DebtLongTermDebtDetailsDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#DebtLongTermDebtDetailsDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/DebtLongTermDebtDetailsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e2c8b-9414-752c-9b99-5af10e005dfc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7fe5-a949-1e9ab9f32e68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e2c8b-9414-752c-9b99-5af10e005dfc" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7fe5-a949-1e9ab9f32e68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019e2c8b-9414-728d-9488-5aa31294a935" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e2c8b-9414-752c-9b99-5af10e005dfc" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019e2c8b-9414-728d-9488-5aa31294a935" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/DebtLongTermDebtDetailsDetails_1" xlink:type="simple" xlink:href="ecg-20260630.xsd#DebtLongTermDebtDetailsDetails_1"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/DebtLongTermDebtDetailsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e2c8b-9414-7803-b707-63fe466290e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019e2c8b-9414-73f3-8c6e-70236ea62031" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e2c8b-9414-7803-b707-63fe466290e6" xlink:to="loc_us-gaap_LongTermDebtCurrent_019e2c8b-9414-73f3-8c6e-70236ea62031" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019e2c8b-9414-7af5-89b9-881e32e48dbf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e2c8b-9414-7803-b707-63fe466290e6" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019e2c8b-9414-7af5-89b9-881e32e48dbf" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/DebtScheduleofLongTermDebtMaturitiesDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#DebtScheduleofLongTermDebtMaturitiesDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/DebtScheduleofLongTermDebtMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7a64-b76f-94001f2e673c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e2c8b-9414-78c4-88dc-52060bc153d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7a64-b76f-94001f2e673c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e2c8b-9414-78c4-88dc-52060bc153d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e2c8b-9414-7299-a91d-f7101101a458" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7a64-b76f-94001f2e673c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e2c8b-9414-7299-a91d-f7101101a458" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e2c8b-9414-7034-b887-760b38bfe8a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7a64-b76f-94001f2e673c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e2c8b-9414-7034-b887-760b38bfe8a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e2c8b-9414-735a-a6c5-f92969c63855" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e2c8b-9414-7a64-b76f-94001f2e673c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e2c8b-9414-735a-a6c5-f92969c63855" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/LeasesSummaryofOperatingLeaseCostsDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#LeasesSummaryofOperatingLeaseCostsDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/LeasesSummaryofOperatingLeaseCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019e2c8b-9414-718e-bf4a-921fb0255b00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019e2c8b-9414-78a5-92f3-d6396482c726" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019e2c8b-9414-718e-bf4a-921fb0255b00" xlink:to="loc_us-gaap_OperatingLeaseCost_019e2c8b-9414-78a5-92f3-d6396482c726" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_019e2c8b-9414-7256-9147-79c3045e793a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019e2c8b-9414-718e-bf4a-921fb0255b00" xlink:to="loc_us-gaap_VariableLeaseCost_019e2c8b-9414-7256-9147-79c3045e793a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_019e2c8b-9414-789c-88e0-249403a16cfd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermLeaseCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019e2c8b-9414-718e-bf4a-921fb0255b00" xlink:to="loc_us-gaap_ShortTermLeaseCost_019e2c8b-9414-789c-88e0-249403a16cfd" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/LeasesReconciliationofFutureUndiscountedCashFlowstoOperatingLeaseLiabilitiesDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#LeasesReconciliationofFutureUndiscountedCashFlowstoOperatingLeaseLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/LeasesReconciliationofFutureUndiscountedCashFlowstoOperatingLeaseLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019e2c8b-9414-730c-a28f-3a1005cf0fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019e2c8b-9414-730c-a28f-3a1005cf0fc5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019e2c8b-9414-7166-a483-7b76c70866ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019e2c8b-9414-7166-a483-7b76c70866ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019e2c8b-9414-7ad6-81df-ebf6209c7097" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019e2c8b-9414-7ad6-81df-ebf6209c7097" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019e2c8b-9414-7e5e-8ace-88725d786f9b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019e2c8b-9414-7e5e-8ace-88725d786f9b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019e2c8b-9414-7925-bc94-93b0af8f4bbf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019e2c8b-9414-7925-bc94-93b0af8f4bbf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecg_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour_019e2c8b-9414-7071-980b-a3b975c17af2" xlink:href="ecg-20260630.xsd#ecg_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-734d-b34e-d135d421f2e2" xlink:to="loc_ecg_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour_019e2c8b-9414-7071-980b-a3b975c17af2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/LeasesReconciliationofFutureUndiscountedCashFlowstoOperatingLeaseLiabilitiesDetails_1" xlink:type="simple" xlink:href="ecg-20260630.xsd#LeasesReconciliationofFutureUndiscountedCashFlowstoOperatingLeaseLiabilitiesDetails_1"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/LeasesReconciliationofFutureUndiscountedCashFlowstoOperatingLeaseLiabilitiesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-7a10-bac3-20e584c83d48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019e2c8b-9414-7549-ada2-e9bf955c04fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-7a10-bac3-20e584c83d48" xlink:to="loc_us-gaap_OperatingLeaseLiability_019e2c8b-9414-7549-ada2-e9bf955c04fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019e2c8b-9414-71e7-9c45-bae633e199c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2c8b-9414-7a10-bac3-20e584c83d48" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019e2c8b-9414-71e7-9c45-bae633e199c0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/LeasesLeaseIncomeDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#LeasesLeaseIncomeDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/LeasesLeaseIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseIncome_019e2c8b-9414-7629-b628-c422be435b93" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_019e2c8b-9414-7f89-9c52-63c9b0992fa8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseIncome_019e2c8b-9414-7629-b628-c422be435b93" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_019e2c8b-9414-7f89-9c52-63c9b0992fa8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/LeasesMaturityofLessorUndiscountedCashFlowsDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#LeasesMaturityofLessorUndiscountedCashFlowsDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/LeasesMaturityofLessorUndiscountedCashFlowsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e2c8b-9414-73e2-9427-f3fd00175c33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019e2c8b-9414-75d9-ad1e-e9a2952741cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e2c8b-9414-73e2-9427-f3fd00175c33" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019e2c8b-9414-75d9-ad1e-e9a2952741cd" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/LeasesComponentsofCertainEquipmentLeasedtoThirdPartiesUnderOperatingLeasesDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#LeasesComponentsofCertainEquipmentLeasedtoThirdPartiesUnderOperatingLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/LeasesComponentsofCertainEquipmentLeasedtoThirdPartiesUnderOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet_019e2c8b-9414-762e-89ee-d4e1d8d7b924" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross_019e2c8b-9414-7b18-8154-92cc9fc0add0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet_019e2c8b-9414-762e-89ee-d4e1d8d7b924" xlink:to="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross_019e2c8b-9414-7b18-8154-92cc9fc0add0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation_019e2c8b-9414-7ac8-b136-cad3af9aba7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet_019e2c8b-9414-762e-89ee-d4e1d8d7b924" xlink:to="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation_019e2c8b-9414-7ac8-b136-cad3af9aba7e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.everus.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="ecg-20260630.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.everus.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2c8b-9414-7f5b-aead-0f15da952d13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2c8b-9414-7d18-af1d-a2911e353c40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2c8b-9414-7f5b-aead-0f15da952d13" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2c8b-9414-7d18-af1d-a2911e353c40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e2c8b-9414-7998-9144-50907820bfc0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2c8b-9414-7f5b-aead-0f15da952d13" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e2c8b-9414-7998-9144-50907820bfc0" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
