About the Overtime Cost Calculator
What overtime costs an employer per week and per year, compared with hiring an extra part-time worker.
Also known as: cost of overtime, overtime expense.
How to use this calculator
- Enter employees on overtime, overtime hours each per week, hourly wage, multiplier.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Cost = staff × OT hours × wage × multiplier
Worked example
Using the values pre-filled in the calculator above:
- Employees on overtime = 6
- Overtime hours each per week = 5
- Hourly wage = 24
- Multiplier = 1.5
the calculator returns:
- Annual overtime cost: 56,160
- Weekly: 1,080
- Premium portion per year: 18,720