Painting Labor Cost Calculator
ANA›Life Services Authority›National Calculator Authority›Painting 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; } }
Painting Labor Cost Calculator
Estimate the labor cost to paint a room or surface based on dimensions, number of coats, and hourly labor rate.
Room Length (ft)
Room Width (ft)
Ceiling Height (ft)
Number of Doors
Number of Windows
Number of Coats
Labor Rate ($/hr)
Painter Productivity (sq ft/hr)
Number of Painters
Calculate
function paiCalc() { var length = parseFloat(document.getElementById('pai-length').value); var width = parseFloat(document.getElementById('pai-width').value); var height = parseFloat(document.getElementById('pai-height').value); var doors = parseFloat(document.getElementById('pai-doors').value); var windows = parseFloat(document.getElementById('pai-windows').value); var coats = parseFloat(document.getElementById('pai-coats').value); var rate = parseFloat(document.getElementById('pai-rate').value); var productivity = parseFloat(document.getElementById('pai-productivity').value); var painters = parseFloat(document.getElementById('pai-painters').value);
// Validation if (isNaN(length) || length Please enter a valid room length (> 0 ft).'; return; } if (isNaN(width) || width Please enter a valid room width (> 0 ft).'; return; } if (isNaN(height) || height Please enter a valid ceiling height (≥ 4 ft).'; return; } if (isNaN(doors) || doors Number of doors cannot be negative.'; return; } if (isNaN(windows) || windows Number of windows cannot be negative.'; return; } if (isNaN(coats) || coats Number of coats must be at least 1.'; return; } if (isNaN(rate) || rate Please enter a valid labor rate (> $0/hr).'; return; } if (isNaN(productivity) || productivity Productivity must be at least 50 sq ft/hr.'; return; } if (isNaN(painters) || painters Number of painters must be at least 1.'; return; }
// --- Core Formulas --- // Wall area = perimeter × height var perimeter = 2 * (length + width); var grossWallArea = perimeter * height;
// Deductions: standard door ≈ 20 sq ft, standard window ≈ 15 sq ft var doorDeduction = doors * 20; var windowDeduction = windows * 15; var netWallArea = Math.max(0, grossWallArea - doorDeduction - windowDeduction);
// Ceiling area var ceilingArea = length * width;
// Total paintable area (walls + ceiling) var totalArea = netWallArea + ceilingArea;
// Total area to paint accounting for coats var totalPaintArea = totalArea * coats;
// Total labor hours = total paint area / productivity per painter // Then divide by number of painters for elapsed (calendar) hours var totalLaborHours = totalPaintArea / productivity; // man-hours var elapsedHours = totalLaborHours / painters; // clock hours
// Total labor cost = man-hours × hourly rate var totalLaborCost = totalLaborHours * rate;
// Cost per sq ft (based on net paintable area, single coat) var costPerSqFt = totalArea > 0 ? totalLaborCost / totalArea : 0;
// Format helpers function fmt(n, d) { return n.toFixed(d !== undefined ? d : 2); } function fmtC(n) { return '$' + n.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ','); }
var html = '### Results ' + '' + 'Gross Wall Area' + fmt(grossWallArea, 1) + ' sq ft' + 'Door Deductions−' + fmt(doorDeduction, 1) + ' sq ft (' + doors + ' door' + (doors !== 1 ? 's' : '') + ' × 20 sq ft)' + 'Window Deductions−' + fmt(windowDeduction, 1) + ' sq ft (' + windows + ' window' + (windows !== 1 ? 's' : '') + ' × 15 sq ft)' + 'Net Wall Area' + fmt(netWallArea, 1) + ' sq ft' + 'Ceiling Area' + fmt(ceilingArea, 1) + ' sq ft' + 'Total Paintable Area' + fmt(totalArea, 1) + ' sq ft' + 'Coats Applied' + coats + '' + 'Total Paint Area (all coats)' + fmt(totalPaintArea, 1) + ' sq ft' + 'Total Man-Hours' + fmt(totalLaborHours, 2) + ' hrs' + 'Elapsed Time (' + painters + ' painter' + (painters !== 1 ? 's' : '') + ')' + fmt(elapsedHours, 2) + ' hrs' + 'Labor Rate' + fmtC(rate) + '/hr' + 'Total Labor Cost' + fmtC(totalLaborCost) + '' + 'Cost per Sq Ft (1 coat)' + fmtC(costPerSqFt) + '/sq ft' + '';
document.getElementById('pai-result').innerHTML = html; }
#### Formulas Used
Gross Wall Area = 2 × (Length + Width) × Height
Net Wall Area = Gross Wall Area − (Doors × 20 sq ft) − (Windows × 15 sq ft)
Ceiling Area = Length × Width
Total Paintable Area = Net Wall Area + Ceiling Area
Total Paint Area = Total Paintable Area × Number of Coats
Total Man-Hours = Total Paint Area ÷ Productivity (sq ft/hr)
Elapsed Hours = Total Man-Hours ÷ Number of Painters
Total Labor Cost = Total Man-Hours × Labor Rate ($/hr)
Cost per Sq Ft = Total Labor Cost ÷ Total Paintable Area
#### Assumptions & References
- Standard door opening deduction: 20 sq ft (approx. 3 ft × 6.67 ft) per door.
- Standard window opening deduction: 15 sq ft (approx. 3 ft × 5 ft) per window.
- Default painter productivity: 150 sq ft/hr for smooth interior walls; rough or textured surfaces may reduce this to 100 sq ft/hr or less.
- Productivity accounts for cutting in, rolling, and minor prep; it does not include heavy surface repair, priming bare drywall, or moving furniture.
- Typical residential labor rates range from $25–$75/hr depending on region and experience (Painting Contractors Association, 2023).
- This calculator estimates labor only; paint, primer, tape, drop cloths, and equipment costs are not included.
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