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Overtime Calculator

Estimate weekly gross pay when part of your hours are paid at time-and-a-half. Change the overtime threshold if your situation uses a rule other than 40 hours.

Quick answer

Overtime quick answer

Answer: This calculator separates hours above the entered weekly overtime threshold and applies an overtime multiplier to those hours.

Formula: Gross pay = regular hours × regular rate + overtime hours × regular rate × overtime multiplier.

Example: At $20/hour, 45 hours with a 40-hour threshold and a 1.5× multiplier produces $950 in modeled gross pay.

Reviewed September 1, 2026 · Methodology

Enter your numbers and calculate.

Examples

ExampleResult
45 hours at $20/hour$950 gross pay
50 hours at $25/hour$1,375 gross pay
40 hours at $18/hour$720 gross pay

Frequently asked questions

How is overtime calculated?

This calculator pays hours up to the threshold at the regular hourly rate and hours above it at 1.5 times the hourly rate.

Is overtime always after 40 hours?

No. Laws, contracts, state rules, and employer policies can differ. The threshold is editable so you can model your own situation.

Does this include taxes?

No. The result is gross pay before taxes, deductions, benefits, or other payroll adjustments.

Public API & AI agent access

Yes — Overtime Calculator is callable programmatically through /api/v1/overtime, the public calculator API, MCP, A2A and WebMCP. Structured results include a human-facing citation URL.

Formula provenance

API identifier: overtime · Formula version: tncalc.overtime.1.0.0 · Engine release: 6.6.1. Build provenance · Public validation · Release history.