Ohio Prevailing Wage Calculator
ANA›Life Services Authority›National Calculator Authority›Ohio Prevailing Wage 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; } }
Ohio Prevailing Wage Calculator
Calculate total prevailing wage costs for Ohio public improvement projects per Ohio Revised Code §4115. Enter the base wage rate, fringe benefits, hours worked, and overtime hours to determine gross wages owed.
Base Hourly Wage Rate ($)
The prevailing wage rate for the applicable trade/classification in the county.
Fringe Benefits Rate ($ per hour)
Health insurance, pension, vacation, and other bona fide fringe benefits per hour.
Regular Hours Worked (per week)
Standard hours worked at straight-time rate (typically up to 40 hours/week).
Overtime Hours Worked (per week)
Hours worked beyond 40 per week. Ohio prevailing wage overtime = 1.5× base wage rate.
Number of Workers
Total number of workers in this trade classification.
Number of Weeks on Project
Total project duration in weeks for this trade.
Calculate Prevailing Wage
function ohiCalc() { var errors = [];
var baseWage = parseFloat(document.getElementById('ohi-base-wage').value); var fringeBenefits = parseFloat(document.getElementById('ohi-fringe-benefits').value); var regularHours = parseFloat(document.getElementById('ohi-regular-hours').value); var overtimeHours = parseFloat(document.getElementById('ohi-overtime-hours').value); var numWorkers = parseFloat(document.getElementById('ohi-num-workers').value); var numWeeks = parseFloat(document.getElementById('ohi-num-weeks').value);
// Validation if (isNaN(baseWage) || baseWage 168) errors.push("Regular hours cannot exceed 168 per week."); if (isNaN(overtimeHours) || overtimeHours 0) { resultDiv.style.display = 'block'; resultDiv.innerHTML = 'Please fix the following:' + errors.map(function(e){ return ''; }).join('') + ''; return; }
// ── Core Ohio Prevailing Wage Formulas (ORC §4115) ────────────────────────── // Overtime multiplier: 1.5× base wage only (fringe benefits paid at straight time on all hours) var overtimeRate = baseWage * 1.5;
// Per-worker weekly wages var weeklyRegularWage = baseWage * regularHours; var weeklyOvertimeWage = overtimeRate * overtimeHours; var totalHoursPerWeek = regularHours + overtimeHours;
// Fringe benefits paid on ALL hours (regular + overtime) at straight-time rate var weeklyFringe = fringeBenefits * totalHoursPerWeek;
// Total weekly compensation per worker var weeklyTotalPerWorker = weeklyRegularWage + weeklyOvertimeWage + weeklyFringe;
// Project totals var projectTotalPerWorker = weeklyTotalPerWorker * numWeeks; var projectGrandTotal = projectTotalPerWorker * numWorkers;
// Effective total hourly rate (base + OT premium weighted + fringe) var totalHoursProject = totalHoursPerWeek * numWeeks * numWorkers; var effectiveHourlyRate = (projectGrandTotal / totalHoursProject);
// Straight-time equivalent (all hours at base + fringe, no OT) var straightTimeTotal = (baseWage + fringeBenefits) * totalHoursProject; var overtimePremiumTotal = projectGrandTotal - straightTimeTotal;
// ── Format helpers ─────────────────────────────────────────────────────────── function fmt(n) { return '$' + n.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ','); } function fmtH(n) { return n.toFixed(1).replace(/\B(?=(\d{3})+(?!\d))/g, ',') + ' hrs'; }
resultDiv.style.display = 'block'; resultDiv.innerHTML = '### Ohio Prevailing Wage Results ' +
'#### Per-Worker Weekly Breakdown ' + '' + 'Regular Wages (' + regularHours.toFixed(1) + ' hrs × ' + fmt(baseWage) + ')' + fmt(weeklyRegularWage) + '' + 'Overtime Wages (' + overtimeHours.toFixed(1) + ' hrs × ' + fmt(overtimeRate) + ')' + fmt(weeklyOvertimeWage) + '' + 'Fringe Benefits (' + totalHoursPerWeek.toFixed(1) + ' hrs × ' + fmt(fringeBenefits) + ')' + fmt(weeklyFringe) + '' + 'Weekly Total per Worker' + fmt(weeklyTotalPerWorker) + '' + '' +
'#### Project Summary (' + numWorkers + ' worker' + (numWorkers > 1 ? 's' : '') + ' × ' + numWeeks + ' week' + (numWeeks > 1 ? 's' : '') + ') ' + '' + 'Total Hours (all workers)' + fmtH(totalHoursProject) + '' + 'Straight-Time Wage + Fringe Cost' + fmt(straightTimeTotal) + '' + 'Overtime Premium Cost' + fmt(overtimePremiumTotal) + '' + 'Total per Worker (full project)' + fmt(projectTotalPerWorker) + '' + 'Grand Total Prevailing Wage Cost' + fmt(projectGrandTotal) + '' + 'Effective All-In Hourly Rate' + fmt(effectiveHourlyRate) + '' + ''; }
#### Formulas Used
Overtime Rate = Base Wage × 1.5
Weekly Regular Wages = Base Wage × Regular Hours
Weekly Overtime Wages = (Base Wage × 1.5) × Overtime Hours
Weekly Fringe Benefits = Fringe Rate × (Regular Hours + Overtime Hours)
Note: Fringe benefits are paid at the straight-time rate on all hours worked, including overtime hours.
Weekly Total per Worker = Regular Wages + Overtime Wages + Fringe Benefits
Project Grand Total = Weekly Total per Worker × Number of Weeks × Number of Workers
Effective Hourly Rate = Grand Total ÷ Total Hours Worked (all workers)
#### Assumptions & References
- Ohio Revised Code §4115.03–§4115.16 governs prevailing wage requirements on public improvement projects.
- Prevailing wage applies to public improvement contracts where the total project cost meets or exceeds the applicable threshold (currently $250,000 for new construction; $75,000 for reconstruction/renovation as of 2023).
- Overtime is calculated at 1.5× the base wage rate for all hours worked over 40 in a workweek, per the Fair Labor Standards Act and ORC §4115.
- Fringe benefits (health insurance, pension, vacation pay, etc.) are paid at the straight-time rate on all hours, including overtime hours — only the base wage is multiplied by 1.5 for overtime.
- Prevailing wage rates are set by the Ohio Department of Commerce, Wage and Hour Bureau and vary by trade classification and county. Rates are updated periodically — always verify current rates at com.ohio.gov.
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References
The law belongs to the people. Georgia v. Public.Resource.Org, 590 U.S. (2020)