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Labor Cost Calculator – Hours × Rate × Crew

Quick answer

Labor estimator: hours × rate × crew size, overtime at 1.5× after 40 h/week, plus 15-30% overhead for insurance, tools and payroll burden.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How does the labor cost calculator work?

Labor = (H × Rate × Crew) + (OT × Rate × 1.5) + Overhead

Instead of working from a supplier's ballpark figure, this calculator derives your labor cost requirement from Labor = (H × Rate × Crew) + (OT × Rate × 1.5) + Overhead using the exact crew size, hourly rate and job hours you provide. The arithmetic stays transparent: each result links back to the displayed formula, so you can audit any number. For instance: 3 masons × 60 h × $22 + 10 h OT: $3,960 + $330 = $4,290 + 20% burden ≈ $5,150. Keep in mind: Price by the square meter for known scopes; hourly only for undefined repair work. Quantities are rounded conservatively so offcuts, spillage and delivery shortages never stop work mid-job.

  1. 1

    Take dimensions

    Note the crew size, hourly rate and job hours for the area you are covering or filling.

  2. 2

    Run the calculation

    The calculator applies Labor = (H × Rate × Crew) + (OT × Rate × 1.5) + Overhead the moment you type.

  3. 3

    Check the breakdown

    Compare base quantity and waste-adjusted totals side by side.

  4. 4

    Plan the purchase

    Use the final figure to price and schedule the delivery.

Use Cases

Value engineering

Compare labor cost scenarios to trim budget without cutting scope.

New home budgets

Bracket labor cost totals against $100-400 per ft² build rates.

Contractor quotations

Line-item labor cost checks before accepting any bid.

Common Mistakes

  • Using cheapest quote blindly

  • No contingency line

  • Quoting from old prices

FAQs

Typical overhead on construction labor?

15-30% covering workers comp, liability, payroll tax, benefits and small tools - quote it as burdened rate.

Overtime multiplier on sites?

1.5× after 40 h/week standard; 2× Sundays and holidays in most contracts and union agreements.

Labor hours per m² of construction?

Framing 0.5-1 h/m², finishes 1-2 h/m², whole house 8-12 h/m² from groundbreak to keys.

Labor share vs materials?

Roughly 35-45% labor vs 55-65% materials on standard builds; custom finish work flips the ratio.

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