Prevailing wage calculator
Base + fringe, the correct overtime math, and weekly gross
This calculator turns a wage-determination line - base rate plus fringe - into the total required hourly rate, the overtime rate, and weekly gross pay. The overtime rule it applies: hours over 40 are paid at 1.5× the base rate only; the fringe amount stays at straight time (Contract Work Hours and Safety Standards Act, 29 CFR §5.32).
Total hourly: $52.50 · Overtime hourly: $71.50
Worked example
Say the determination line for your classification reads $38.00 base and $14.50 fringes, and a worker puts in 45 hours in a week:
- Total required straight-time rate: $38.00 + $14.50 = $52.50/hour.
- Overtime hourly rate: (1.5 × $38.00) + $14.50 = $57.00 + $14.50 = $71.50/hour - the multiplier applies to the base only.
- Weekly gross: 40 × $52.50 + 5 × $71.50 = $2,100.00 + $357.50 = $2,457.50.
The fringe portion may be delivered as bona fide benefits instead of cash; whether your benefits cover it is exactly what the fringe-benefit calculator checks. Rates themselves come from your wage determination.