Federal Grant Matching Funds Calculator

ANA›Life Services Authority›National Calculator Authority›Federal Grant Matching Funds Calculator

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Federal Grant Matching Funds Calculator

Determine how much matching (cost-share) funding your organization must contribute to secure a federal grant, based on the federal share percentage and total project budget.

Total Project Cost ($)

Federal Share (%)

Percentage of total project cost covered by the federal grant (e.g., 80% federal / 20% match).

Indirect Cost Rate (%) (optional)

Your organization's negotiated indirect cost rate applied to direct costs. Leave 0 if not applicable.

Direct Costs ($) (optional — used with indirect rate)

Direct costs portion of the project budget. Required only if calculating indirect costs separately.

Calculate

function fedCalc() { // --- Grab inputs --- var totalCostRaw = document.getElementById('fed-total-cost').value.trim(); var fedShareRaw = document.getElementById('fed-federal-share').value.trim(); var indirectRaw = document.getElementById('fed-indirect-rate').value.trim(); var directCostRaw = document.getElementById('fed-direct-costs').value.trim();

var resultDiv = document.getElementById('fed-result'); resultDiv.style.display = 'block'; resultDiv.className = 'calc-result';

// --- Validation --- var errors = [];

if (totalCostRaw === '' || isNaN(parseFloat(totalCostRaw))) { errors.push('Total Project Cost is required and must be a number.'); } if (fedShareRaw === '' || isNaN(parseFloat(fedShareRaw))) { errors.push('Federal Share (%) is required and must be a number.'); }

var totalCost = parseFloat(totalCostRaw); var fedSharePct = parseFloat(fedShareRaw); var indirectRate = (indirectRaw === '' || isNaN(parseFloat(indirectRaw))) ? 0 : parseFloat(indirectRaw); var directCosts = (directCostRaw === '' || isNaN(parseFloat(directCostRaw))) ? 0 : parseFloat(directCostRaw);

if (!isNaN(totalCost) && totalCost 100)) { errors.push('Federal Share must be between 0 and 100.'); } if (indirectRate 100) { errors.push('Indirect Cost Rate must be between 0 and 100.'); } if (directCosts totalCost && !isNaN(totalCost)) { errors.push('Direct Costs cannot exceed Total Project Cost.'); }

if (errors.length > 0) { resultDiv.classList.add('calc-result-error'); resultDiv.innerHTML = 'Please fix the following errors:' + errors.map(function(e){ return ''; }).join('') + ''; return; }

// --- Core Formulas --- // Match percentage = 100% - Federal Share % var matchPct = 100 - fedSharePct;

// Federal Award Amount = Total Project Cost × (Federal Share % / 100) var federalAward = totalCost * (fedSharePct / 100);

// Required Match = Total Project Cost × (Match % / 100) // Equivalently: Required Match = Total Project Cost - Federal Award var requiredMatch = totalCost - federalAward;

// Match Ratio (federal:match) — how many federal dollars per match dollar // Match Ratio = Federal Award / Required Match (only meaningful when match > 0) var matchRatio = (requiredMatch > 0) ? (federalAward / requiredMatch) : Infinity;

// Indirect Costs on Direct Costs (if provided) // Indirect Cost Amount = Direct Costs × (Indirect Rate / 100) var indirectAmount = 0; var indirectOnMatch = 0; if (indirectRate > 0 && directCosts > 0) { indirectAmount = directCosts * (indirectRate / 100); // Indirect costs attributable to match portion var matchFraction = matchPct / 100; indirectOnMatch = directCosts * matchFraction * (indirectRate / 100); }

// Effective match needed including indirect on match portion var totalMatchNeeded = requiredMatch; // base match // Note: indirect costs are typically included within total project cost already; // we surface the breakdown for transparency.

// --- Format helpers --- function fmt(n) { return n.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2}); } function fmtPct(n) { return n.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2}) + '%'; }

// --- Build output ---
var ratioStr = (requiredMatch > 0)
? fmt(matchRatio) + ' federal dollars per match dollar'
'N/A (100% federally funded — no match required)';

var indirectRow = ''; if (indirectRate > 0 && directCosts > 0) { indirectRow = 'Indirect Cost Amount (on direct costs)$' + fmt(indirectAmount) + '' + 'Indirect Costs Attributable to Match Portion$' + fmt(indirectOnMatch) + ''; }

var html = '### Results ' + '' + 'ItemAmount' + 'Total Project Cost$' + fmt(totalCost) + '' + 'Federal Share' + fmtPct(fedSharePct) + '  ($' + fmt(federalAward) + ')' + 'Required Match (Non-Federal Share)' + fmtPct(matchPct) + '  ($' + fmt(requiredMatch) + ')' + 'Federal-to-Match Ratio' + ratioStr + '' + indirectRow + '';

if (requiredMatch === 0) { html += 'No matching funds required — this grant is 100% federally funded.

'; } else { html += 'Your organization must provide $' + fmt(requiredMatch) + ' in non-federal matching funds ' + '(' + fmtPct(matchPct) + ' of the total project cost) to receive a federal award of $' + fmt(federalAward) + '.

'; }

resultDiv.innerHTML = html; }

#### Formulas Used

Federal Award Amount Federal Award = Total Project Cost × (Federal Share % ÷ 100)

Required Match (Non-Federal Share) Required Match = Total Project Cost − Federal Award                     = Total Project Cost × (Match % ÷ 100) where Match % = 100% − Federal Share %

Federal-to-Match Ratio Ratio = Federal Award ÷ Required Match

Indirect Cost Amount (optional) Indirect Cost = Direct Costs × (Indirect Cost Rate % ÷ 100)

#### Assumptions & References

More Calculators

References

Related Authorities

Life Services Authority › Professional Services Authority › Trade Services Authority › United States Authority ›