Working hours calculator
Enter start and finish times for the week. Get your total hours and pay before tax.
Split shift? Enter the first clock-in and the last clock-out, then add the gap as an unpaid break.
Total this week
0:00
Enter a start and finish time to see your total.
- Regular
- 0:00
- Overtime
- 0:00
- Unpaid breaks
- 0:00
Optional. Adds gross pay to the result.
Changes the symbol only. No conversion.
Rule: No overtime
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How do you calculate your working hours?
To calculate your working hours, take each start time away from the finish time, subtract unpaid breaks and add up the days. Under the Working Time Regulations 1998, your working week must not average more than 48 hours over 17 weeks unless you have opted out in writing. There is no statutory overtime rate. Your contract sets it.
How it works
- Enter start and finish times on the 24-hour clock, for example 09:00 and 17:30. A finish time earlier than the start time is read as the next day.
- Add unpaid breaks in minutes.
- Add your hourly rate, and an overtime rule if your contract has one.
- Read the total in hours and minutes or as a decimal, then print the timesheet or download a CSV.
Worked example: a 44-hour week at £13.00 an hour
| Day | Start | Finish | Unpaid break | Hours |
|---|---|---|---|---|
| Mon–Fri | 09:00 | 17:30 | 30 mins | 8:00 each |
| Sat | 10:00 | 14:00 | none | 4:00 |
| Total | 44:00 (44.00) |
- Each weekday: 17:30 − 09:00 = 8 hours 30 minutes, minus 30 minutes = 8:00. Five days = 40:00.
- Saturday: 14:00 − 10:00 = 4:00.
- Pay at a flat rate: 44 × £13.00 = £572.00
- If the contract pays time and a half after 40 hours: 40 × £13.00 + 4 × £19.50 = £520.00 + £78.00 = £598.00
UK working time limits at a glance
| Rule | Limit | Source |
|---|---|---|
| Average weekly working time | 48 hours, averaged over 17 weeks, unless you opt out in writing | Working Time Regulations 1998, reg. 4 |
| Rest break during the day | 20 minutes if you work more than 6 hours | reg. 12 |
| Daily rest | 11 hours in a row between working days | reg. 10 |
| Weekly rest | 24 hours a week, or 48 hours a fortnight | reg. 11 |
| Overtime pay | No statutory rate. Set by your contract | GOV.UK |
Last checked: 1 November 2026 · Sources: (Rules for workers under 18 are different.)
Last reviewed: How we calculate this
Frequently asked questions
How do I work out my hours for the week?
For each day, take the start time from the finish time and subtract unpaid breaks. Add the days together. Monday to Friday, 09:00 to 17:30 with a 30-minute unpaid break, is 8 hours a day, or 40 hours for the week.
Is there a legal overtime rate in the UK?
No. There is no legal right to overtime pay or to a higher rate. Your contract decides whether overtime is paid and at what rate. Your average pay for all the hours you work must still not fall below the National Minimum Wage or National Living Wage.
What is the 48-hour limit?
Under the Working Time Regulations 1998, most workers can't be made to work more than 48 hours a week on average, normally over a 17-week period. You can choose to opt out in writing. Some jobs are excluded, and the rules for workers under 18 are stricter.
Am I entitled to a break?
If you work more than 6 hours in a day, you are entitled to an uninterrupted 20-minute rest break during the day. Whether it is paid depends on your contract. Your employer can give longer or more breaks.
How do I convert my hours to a decimal?
Divide the minutes by 60. 37 hours 30 minutes is 37.50, and 7 hours 45 minutes is 7.75. The calculator shows both formats. Use the switch under the total to change the view.
Can I use this to work out holiday entitlement?
No. This calculator totals working hours and pay. For statutory holiday entitlement, use the official holiday calculator on GOV.UK.