Work hours calculator
A week of shifts, added up correctly.
Enter when each day started, when it ended and how long the break was. You get the weekly total in hours and minutes, the decimal figure payroll asks for, and overtime split out if you set a threshold. Overnight shifts are handled: if the end time is earlier than the start, the calculator treats it as the next day instead of returning a negative number.
Runs in your browser · No sign-up · Data stays on your device
Your week
Nothing is sent anywhere. The calculation runs in your browser and stays on this device.
The week
Leave a day blank if nobody worked it.
Totals
Updates as you type.
- 0:00
- Total
- 0 days entered
- 0.00
- Decimal hours
- What payroll asks for
How it works
Three inputs a day, and the arithmetic that payroll actually needs.
Enter start and end
Use the 24-hour clock or your browser's time picker. Leave a day blank if nobody worked it.
Subtract the break
Break time is entered in minutes and comes off that day's total. A 30-minute unpaid lunch is 30, not 0.5.
Read the totals
Hours and minutes for reading, decimal hours for payroll, and if you turned overtime on, the split between regular and overtime.
Why this one
The three things people get wrong when they add hours by hand.
Overnight shifts do not break it
A shift from 22:00 to 06:00 is eight hours, not minus sixteen. Most quick calculators get this wrong and night staff pay for it.
Decimal hours, not just h:mm
Payroll systems want 7.75, not 7:45. Both are shown, so nothing has to be converted in your head.
Overtime is explicit
Set the weekly threshold and the multiplier yourself. Different countries and contracts use different rules and a fixed 40-hour assumption is wrong more often than it is right.
Frequently asked questions
How many working hours are in a year?
A full-time year in most countries is about 2,080 hours: 40 hours a week across 52 weeks. Subtracting public holidays and paid leave brings the figure people actually work closer to 1,900. The exact number depends on where you are and what your contract says.
How many work days are in a year?
A year has 260 or 261 weekdays depending on how it falls. 2026 has 261. Public holidays come off that number, so most full-time employees work between 230 and 250 days.
How do I convert hours and minutes to decimal?
Divide the minutes by 60. 7 hours 45 minutes is 7 + 45/60, which is 7.75. This calculator shows both figures so you do not have to.
Does it handle night shifts?
Yes. If the end time is earlier than the start time, the shift is treated as crossing midnight and 24 hours are added. A 22:00 to 06:00 shift comes out as eight hours.
Is my data stored anywhere?
No. The calculation runs in your browser and the entries stay on your device. Nothing is sent to a server.
Other free tools
Three more tools that pair well with this one.
Timesheet Calculator
Add up a two-week pay period. Daily overtime and weekly overtime are counted separately, with a total for the period.
Try it nowWork Days Calculator
Count the work days in any year, or between two dates. Weekends come off, and so do the holidays you enter.
Try it nowOvertime Calculator
Work out overtime pay from your hours, your hourly rate and the multiplier your contract uses.
Try it now
Stop typing times into a calculator
Worktivity records start, end and break automatically while people work, then turns the week into a timesheet you can approve. The calculator above is what the product does once, by hand.
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