This is the main rule used by the calculator, written in plain language so you can check the result.
CalcBeacon tool
Overtime Pay Calculator
Calculate overtime pay from hourly rate, overtime hours and multiplier with a free online overtime calculator.
Overtime pay
£0.00
Overtime Pay Calculator explained clearly
Quick answer: Use this calculator to estimate extra pay from overtime hours and an overtime multiplier such as 1.25×, 1.5×, or 2×.
Examples are rounded where needed, so final values may differ slightly from payroll, school, or accounting systems.
Use the result as a decision aid, then confirm important school, work, or payroll decisions with the official source.
Common mistakes to avoid
- Using total weekly hours instead of overtime-only hours
- Forgetting the overtime multiplier
- Comparing gross overtime with net take-home pay
Methodology
The calculator multiplies overtime hours by the normal hourly rate and the selected multiplier, then combines it with regular pay where applicable.
Reviewed by CalcBeacon Editorial TeamUpdated June 2026Category: Work & PayDuplicate-section checked
Frequently asked questions
What is an overtime multiplier?
It is the rate used for overtime, often higher than normal pay, such as time-and-a-half or double time.
Is overtime always paid the same way?
No. Rules can vary by employer, contract and country.
What is this useful for?
It is useful for payslip checks, shift planning and job comparison.