Job Site Labor Cost Calculator
ANA›Life Services Authority›National Calculator Authority›Job Site Labor Cost Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Job Site Labor Cost Calculator
Estimate total job site labor costs including base wages, labor burden (taxes, insurance, benefits), overtime premiums, and productivity adjustments.
### Workforce
Number of Workers
Regular Hours per Day (per worker)
Number of Working Days
Overtime Hours per Day (per worker)
### Wage Rates
Base Hourly Wage ($/hr)
Overtime Multiplier
1.5× (Standard OT) 2.0× (Double Time) 1.75× (Custom)
Labor Burden Rate (%)
Includes payroll taxes, workers' comp, insurance, benefits. Typical range: 25–45%.
### Productivity & Overhead
Productivity Factor (%)
Effective output vs. paid hours. 85% is typical for field labor.
Foreman / Supervision Uplift (%)
Added cost for on-site supervision as % of direct labor.
Contractor Markup (%)
Calculate Labor Cost
### Labor Cost Breakdown
function jobCalc() { const errEl = document.getElementById('job-error'); const resEl = document.getElementById('job-result'); errEl.style.display = 'none'; resEl.style.display = 'none';
// --- Parse inputs --- const workers = parseFloat(document.getElementById('job-workers').value); const hoursPerDay = parseFloat(document.getElementById('job-hours-per-day').value); const days = parseFloat(document.getElementById('job-days').value); const otHoursPerDay = parseFloat(document.getElementById('job-overtime-hours').value); const baseWage = parseFloat(document.getElementById('job-base-wage').value); const otMult = parseFloat(document.getElementById('job-overtime-multiplier').value); const burdenPct = parseFloat(document.getElementById('job-labor-burden').value); const productivityPct = parseFloat(document.getElementById('job-productivity').value); const foremanPct = parseFloat(document.getElementById('job-foreman-pct').value); const markupPct = parseFloat(document.getElementById('job-markup').value);
// --- Validation --- const fields = [workers, hoursPerDay, days, otHoursPerDay, baseWage, otMult, burdenPct, productivityPct, foremanPct, markupPct]; if (fields.some(v => isNaN(v) || v 24) { errEl.textContent = 'Regular + overtime hours per day cannot exceed 24.'; errEl.style.display = 'block'; return; }
// --- Core Calculations --- // Total regular and overtime hours (all workers, all days) const totalRegHours = workers * hoursPerDay * days; const totalOTHours = workers * otHoursPerDay * days; const totalHours = totalRegHours + totalOTHours;
// Effective OT wage rate const otWage = baseWage * otMult;
// Raw wage cost (before burden) const regWageCost = totalRegHours * baseWage; const otWageCost = totalOTHours * otWage; const totalWageCost = regWageCost + otWageCost;
// Labor burden applied to total wage cost const burdenCost = totalWageCost * (burdenPct / 100);
// Total burdened labor cost const burdenedLaborCost = totalWageCost + burdenCost;
// Productivity adjustment: if workers are only X% productive, // you need more hours to get the same output → cost increases by 1/productivity // Effective cost = burdened cost / productivity factor const productivityFactor = productivityPct / 100; const productivityAdjustedCost = burdenedLaborCost / productivityFactor; const productivityAdder = productivityAdjustedCost - burdenedLaborCost;
// Foreman / supervision uplift on burdened labor const foremanCost = burdenedLaborCost * (foremanPct / 100);
// Subtotal before markup const subtotal = productivityAdjustedCost + foremanCost;
// Contractor markup const markupCost = subtotal * (markupPct / 100);
// Grand total const grandTotal = subtotal + markupCost;
// Derived metrics const effectiveCostPerHour = grandTotal / totalHours; const costPerWorkerPerDay = grandTotal / (workers * days);
// --- Format currency --- const fmt = v => '$' + v.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}); const fmtH = v => v.toLocaleString('en-US', {minimumFractionDigits:1, maximumFractionDigits:1});
// --- Build result table --- const rows = [ ['Workforce Summary', ''], ['Total Workers', workers.toLocaleString()], ['Total Regular Hours', fmtH(totalRegHours) + ' hrs'], ['Total Overtime Hours', fmtH(totalOTHours) + ' hrs'], ['Total Paid Hours', fmtH(totalHours) + ' hrs'], ['', ''], ['Wage Costs', ''], ['Regular Wages (' + fmtH(totalRegHours) + ' hrs × ' + fmt(baseWage) + ')', fmt(regWageCost)], ['Overtime Wages (' + fmtH(totalOTHours) + ' hrs × ' + fmt(otWage) + ')', fmt(otWageCost)], ['Total Raw Wages', fmt(totalWageCost)], ['', ''], ['Labor Burden (' + burdenPct + '%)', fmt(burdenCost)], ['Burdened Labor Cost', fmt(burdenedLaborCost)], ['', ''], ['Productivity Adjustment (' + productivityPct + '% efficiency)', '+' + fmt(productivityAdder)], ['Productivity-Adjusted Labor Cost', fmt(productivityAdjustedCost)], ['', ''], ['Supervision / Foreman (' + foremanPct + '%)', fmt(foremanCost)], ['Subtotal (before markup)', fmt(subtotal)], ['', ''], ['Contractor Markup (' + markupPct + '%)', fmt(markupCost)], ['', ''], ['Total Labor Cost', '' + fmt(grandTotal) + ''], ['', ''], ['Effective Cost per Paid Hour', fmt(effectiveCostPerHour)], ['Cost per Worker per Day', fmt(costPerWorkerPerDay)], ];
const tbody = document.getElementById('job-result-table'); tbody.innerHTML = rows.map(([label, value]) => { if (!label && !value) return ''; return '' + '' + label + '' + '' + value + '' + ''; }).join('');
resEl.style.display = 'block'; }
#### Formulas Used
Regular Wage Cost = Workers × Regular Hours/Day × Days × Base Wage
Overtime Wage Cost = Workers × OT Hours/Day × Days × (Base Wage × OT Multiplier)
Labor Burden Cost = (Regular + OT Wage Cost) × Burden Rate
Burdened Labor Cost = Total Wages + Labor Burden
Productivity-Adjusted Cost = Burdened Labor Cost ÷ (Productivity % / 100)
Supervision Cost = Burdened Labor Cost × Foreman Uplift %
Subtotal = Productivity-Adjusted Cost + Supervision Cost
Total Labor Cost = Subtotal × (1 + Markup % / 100)
Effective Cost/Hour = Total Labor Cost ÷ Total Paid Hours
#### Assumptions & References
- Overtime is calculated at the selected multiplier (default 1.5×) per the Fair Labor Standards Act (FLSA) for hours beyond 8/day or 40/week depending on jurisdiction.
- Labor burden typically includes: FICA (7.65%), FUTA/SUTA (~3%), workers' compensation (varies by trade, 5–20%), general liability, health benefits, and paid leave. The 25–45% range is standard in U.S. construction (RSMeans, CFMA benchmarks).
- Productivity factor accounts for non-productive paid time (breaks, travel on site, weather delays, tool setup). An 85% factor is a widely cited industry average (MCAA, NECA labor studies).
- Foreman/supervision uplift reflects the cost of on-site lead workers or foremen who may not be directly productive. Typically 8–15% of direct labor.
- This calculator estimates direct field labor cost. It does not include materials, equipment, subcontractors, or general & administrative overhead beyond the markup entered.
- Reference: RSMeans Building Construction Cost Data; CFMA Financial Benchmarker; U.S. DOL FLSA guidelines.
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