Work Hours Calculator
Add up shifts, subtract breaks, and total the week in decimal hours.
Totalling a timesheet
Enter start, end and break minutes for each day; per-day totals and the week's sum appear as you type, in both hours-and-minutes and the decimal hours payroll systems want. An optional hourly rate turns the total into pay. Overnight shifts work โ 22:00 to 06:00 counts forward across midnight rather than negative.
The decimal-hours trap
The classic timesheet error is writing 7 hours 30 minutes as 7.30: payroll reads that as 7.3 hours โ 7 hours 18 minutes โ and underpays twelve minutes a day. Minutes convert by dividing by 60: :15 is 0.25, :20 is 0.33, :30 is 0.5, :45 is 0.75. Both forms are shown here so the right one gets copied.
Break rules vary by employer and jurisdiction โ whether they are paid, and whether they are mandatory at certain shift lengths โ so this tool subtracts exactly what you enter and leaves policy to the handbook. For the gap between two calendar dates rather than clock times, the date difference calculator is the right tool, and invoicing arithmetic often ends at the percentage calculator for the tax line โ or the VAT calculator directly.
Frequently asked questions
How do I convert minutes to decimal hours?
Divide by 60: 15 minutes is 0.25, 30 is 0.5, 45 is 0.75. Writing 7:30 as 7.30 instead of 7.5 is the classic payroll error โ both forms are shown here.
Does it handle overnight shifts?
Yes. An end time earlier than the start is treated as crossing midnight, so 22:00โ06:00 counts 8 hours.
Are breaks paid or unpaid?
That is policy, not arithmetic โ it varies by employer and local law. Enter the unpaid break minutes and the calculator subtracts exactly those.
How many working hours are in a week?
A standard full-time week runs 35โ40 hours depending on country and contract; five 8-hour days with half-hour unpaid breaks totals 37.5.