About the Work Hours Calculator
Filling in a timesheet shouldn't require a calculator and a headache. Enter your start time, your end time and your break in minutes, and this work hours calculator immediately shows the time actually worked — both as hours and minutes (7h 45m) and as the decimal figure (7.75) that payroll systems and invoices expect. The break is deducted from the total automatically.
It also copes gracefully with shifts that cross midnight, so a 22:00 to 06:00 night shift computes correctly instead of producing a negative result. Employees use it to double-check their payslips, freelancers to bill their clients accurately, and managers to verify rosters and rotas. Everything runs in your browser: no sign-up, no spreadsheet formulas, and instant recalculation whenever any time changes.
Features
- Hours worked from start, end and break times
- Decimal-hours output for payroll and invoicing
- Overnight shifts past midnight handled correctly
- Break minutes deducted from the total automatically
- Instant results with familiar time pickers
- Free and private — nothing leaves your browser
How to calculate hours worked
- Enter your shift start time.
- Enter your shift end time.
- Type your total break time in minutes.
- Read the hours worked and the decimal equivalent.
Frequently asked questions
How do I calculate my hours worked?
Subtract the start time from the end time, then subtract unpaid breaks. A 09:00 to 17:30 day with a 30-minute lunch is 8 hours 30 minutes minus 30 minutes, so 8 hours worked. This calculator performs those steps and shows the result in both formats instantly.
What are decimal hours and why does payroll use them?
Decimal hours express minutes as fractions of an hour: divide the minutes by 60, so 7h 45m becomes 7.75. Payroll and invoicing systems prefer decimals because pay is a simple multiplication — 7.75 hours × 20 per hour = 155.00 — with no minutes-to-money conversion errors.
Does it work for overnight and night shifts?
Yes. When the end time is earlier than the start time, the calculator assumes the shift crossed midnight and adds 24 hours. A 22:00 start with a 06:00 finish and a 30-minute break correctly yields 7h 30m, or 7.50 decimal hours.
How do I total my hours for a whole week?
Run the calculation once per day and add the decimal figures — decimals sum cleanly where hours-and-minutes arithmetic invites mistakes. Five days of 7.75 hours totals 38.75 hours. Jot each day's decimal value down and your weekly timesheet is a simple addition.
Should I enter paid breaks in the break field?
Only deduct breaks that are unpaid. The break field subtracts its minutes from your worked time, which is correct for an unpaid lunch. If your employer pays for short rest breaks, leave those out of the field — or set it to 0 — so they still count as time worked.