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Overtime pay calculator

Enter the monthly salary, your contracted hours and the overtime hours. The premium is prefilled with a common rate: there is no statutory overtime rate in the UK, so set the one in your contract.

The figures behind it · Statutory overtime premium
none
Common contractual rate
time and a half
Maximum average week
48 h (opt-out possible)

Your figures

The uplift over the normal hourly rate. There is no statutory overtime rate in the UK: your contract sets it, so edit the percentage.

How overtime pay is calculated

The hourly rate comes from the salary, the premium from the contract.

Hourly rate
Monthly gross divided by the monthly hours (hours per week × 52 / 12). On £2,500 and 37.5 hours that is £15.38.
Premium
UK law sets no overtime rate: the average pay over the pay reference period must only stay at or above the National Minimum Wage. Contracts commonly pay time and a quarter, time and a half or double time.
Working Time Regulations
You cannot be required to work more than 48 hours a week on average unless you opted out, and you keep the right to rest breaks and 5.6 weeks' leave.
Source and rules

GOV.UK: overtime pay (no statutory rate)

Rule set 2026.1, last checked on October 12, 2026.

The result is an estimate based on the statutory rules. Your contract, collective agreement or tax code may change the figures. It is not tax or legal advice.

Frequently asked questions

Am I entitled to overtime pay?

Only if your contract says so. Employers must pay at least the minimum wage averaged over all hours, but no premium is required by law.

What is time and a half on £15 an hour?

£22.50 an hour; ten hours of it add £225 to the month.

Does overtime count for holiday pay?

Regular overtime must be included in holiday pay, which is based on the average of the previous 52 paid weeks.

What next?

Know what you are worth? Browse the latest jobs and compare offers with your figures in hand.

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