Hours Calculator
Add up worked hours and convert them to decimal for payroll.
Total hours for the week
40h 00m
40.00 decimal hours across 5 days
Decimal hours
40.00
Days worked
5
Average per day
8.00
Each row is end − start, minus the break, then summed. Overnight shifts roll past midnight.
- Payroll systems want decimal hours: 7 hours 20 minutes is 7.33, not 7.20.
- Nothing you enter leaves your browser — timesheet rows exist only in this page.
| Day | Start | End | Worked | Decimal |
|---|---|---|---|---|
| Monday | 09:00 | 17:30 | 8h 00m | 8.00 |
| Tuesday | 09:00 | 17:30 | 8h 00m | 8.00 |
| Wednesday | 09:00 | 17:30 | 8h 00m | 8.00 |
| Thursday | 09:00 | 17:30 | 8h 00m | 8.00 |
| Friday | 09:00 | 17:30 | 8h 00m | 8.00 |
| Saturday | — | — | 0 | 0.00 |
| Sunday | — | — | 0 | 0.00 |
What does Hours Calculator do?
A timesheet calculator for working out hours between a start and end time, with an unpaid break deducted. It handles overnight shifts and gives the total in both hours-and-minutes and decimal hours, which is what payroll systems need.
How to Use Hours Calculator
- 1Enter start and end timesUse 24-hour time, for example 09:00 and 17:30.
- 2Add the breakIn minutes. It is subtracted from that row.
- 3Add more daysRows total into a weekly figure at the bottom.
Key Features
- Multiple day rows totalled into a weekly figure
- Unpaid break deducted per row
- Overnight shifts calculated correctly across midnight
- Decimal hours alongside hours and minutes
- Optional hourly rate to show gross pay for the period
Frequently Asked Questions
How do I convert minutes to decimal hours?
Divide the minutes by 60. 45 minutes is 0.75 hours, 20 minutes is 0.33 hours. Payroll systems almost always want decimal, which is why both formats are shown.
How are night shifts handled?
If the end time is earlier than the start time, the calculator assumes the shift crossed midnight and adds 24 hours. A 22:00 to 06:00 shift is correctly counted as 8 hours.
Does it calculate overtime?
It totals hours; overtime rules are set by your contract or local law. Compare the weekly total against your standard hours to see the excess, then apply your own multiplier.
Is my timesheet data saved?
Nothing leaves your browser. The rows exist only in the page and disappear when you close the tab.
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