Work Hours Calculator

How many hours did I work?

Start, finish, break — for one shift or a whole week. Totals in hours and minutes and in decimal hours, with overnight shifts handled and nothing sent anywhere.

How this is worked out

Everything is computed in the browser. No timesheet you type here is uploaded, stored or logged.
Times are treated as clock readings, not instants, so a daylight-saving night does not add or remove an hour from a shift.

Questions people ask

The things that come up about work hours calculators, answered plainly.

How do I calculate hours worked?

Subtract the start from the finish, then take off unpaid breaks. 09:00 to 17:30 with a 30-minute lunch is 8 hours — 8.0 in decimal. The page does it per row and totals the week.

What about a shift that runs past midnight?

Enter it as it happened: 22:00 to 06:00. An end earlier than its start is read as the next day, giving eight hours rather than a negative sixteen.

What are decimal hours?

Hours with minutes as a fraction — 7 hours 45 minutes is 7.75. Payroll systems almost always want this form, and it is what the page copies.

Related tools

Timesheets, shifts, overtime and billable hours, added up correctly.

Timesheet CalculatorA timesheet, a time card and a payroll sheet are the same seven rows: start, finish and break for each day, totalled for the week in hours and minutes and in decimal, with your own rounding and overtime rules applied.

Overtime CalculatorHours split into regular, time-and-a-half and double time on the rule you pick, with the pay for each band and the total.

Lunch Break CalculatorThe break owed for a shift of that length under your own rule, what taking it does to the paid total, and roughly when it should fall.

Shift CalculatorOne shift at a time: length, paid hours after breaks, whether it crosses midnight, and where it sits in a rotating pattern.