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The gap between two times, or a duration added to or taken from a time.
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Work Hours Calculator
Total a timesheet and work out the pay.
Work Hours Calculator tool
| Day | Start | Finish | Unpaid break (min) | Worked |
|---|---|---|---|---|
Leave a day blank if you did not work it. A finish time earlier than the start is treated as the next day, so a night shift totals correctly.
—
Total hours
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Decimal hours
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Ordinary pay
—
Overtime pay
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Gross pay
| Day | Start | Finish | Break (min) | Worked |
|---|
Gross pay, before tax and any other
deduction. Those depend on your country and circumstances, and guessing at them would be worse
than leaving them out.
About the Work Hours Calculator
Work Hours Calculator totals a week's timesheet: start and finish for each day, breaks deducted, with the weekly hours, any overtime and the gross pay worked out from them.
Three things make this error-prone by hand and all three are handled here. Time is base sixty, so the carries happen at sixty rather than a hundred. Shifts cross midnight, and the gap from 21:00 to 05:30 is eight and a half hours rather than a negative number. And payroll wants decimal hours, so 7 hours 20 minutes has to become 7.33 rather than 7.20, which is the single most common timesheet mistake and always in the employer's favour.
Breaks are deducted per day rather than as one weekly figure, because unpaid break length varies with shift length in most arrangements. Enter the minutes for each day and the daily total reflects them.
Overtime is calculated against a threshold you set, with its own multiplier, since the rules differ by country and by contract. The default is over forty hours at one and a half times, but both are editable. The result is a breakdown of ordinary hours, overtime hours and the pay for each, which is what you need in order to check a payslip line by line.
This is arithmetic, not financial advice. It tells you what the numbers do; it cannot tell you whether a decision is right for your circumstances. For anything that matters, check the figures against the actual offer and talk to someone qualified.
Everything is worked out inside your browser. Nothing you enter is uploaded, logged or stored, which matters for the financial calculators in particular: the figures you put into them are nobody else's business.
Looking for something this does not cover? FreeToolsHub.org is another hub of free online tools that need no account, and it is worth a look if work hours calculator is only part of what you are working on.
How to use the Work Hours Calculator
- Enter each day's start and finishLeave a day blank if you did not work it.
- Add unpaid break minutesPer day, since break length usually follows shift length.
- Set your rate and the overtime rulesThe threshold and the multiplier are both editable.
- Read the week's totalHours, decimal hours, overtime and gross pay.
Features
- Seven days, each with start, finish and break
- Shifts crossing midnight handled correctly
- Daily and weekly totals in hours, minutes and decimal hours
- Overtime against a threshold you choose, at a multiplier you choose
- Gross pay for ordinary and overtime hours separately
- Copy or download the timesheet
- Nothing is uploaded; your hours and pay stay on your device
Who uses this tool
The work hours calculator is used by writers, developers, students, marketers and anyone else who needs the job done once without installing software. Common cases include:
- Filling in a weekly timesheet
- Checking a payslip against the hours actually worked
- Invoicing a client for time
- Tracking hours across a shift pattern that crosses midnight
- Working out what a week of overtime is worth
Frequently asked questions
Does it handle night shifts?
Yes. A finish time earlier than the start is treated as the next day, so 21:00 to 05:30 is 8 hours 30 minutes.
Why is my decimal total not what I expected?
Minutes are sixtieths, not hundredths. 7 hours 20 minutes is 7.33 decimal hours, not 7.20. That difference is why the decimal figure is shown separately.
Is the gross pay after tax?
No, it is gross. Tax, national insurance and other deductions depend on your country and circumstances, and guessing at them would be worse than leaving them out.
Can I save a week and come back to it?
The page keeps nothing after you close it, by design. Use the download button to keep a copy of the timesheet.
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Checked and rebuilt on 2026-10-14. The method this calculator uses is described in the section above, and corrections go through the contact page.