Hours Worked Calculator

Hours worked per shift: 8 h
In decimal hours: 8 hours
Hours a week: 40 h
Pay for the week, before tax: £600.00

What it does

Enter when a shift starts and finishes and how long your unpaid breaks are to get the hours worked, both in hours and minutes and as decimal hours for timesheets and payroll. Add how many shifts you do a week and your hourly pay to see weekly hours and pay.

How to use it

Start time: When the shift starts.
Finish time: When it ends. A finish time earlier than the start counts as the next day, for night shifts.
Unpaid breaks: Total unpaid break time in the shift. Paid breaks count as work, so leave them out.
Shifts a week: How many of these shifts you work in a week.
Hourly pay: Your pay per hour before tax, to work out pay for the week. Enter 0 to skip it.

Common uses

Filling in a timesheet or checking a payslip.
Working out night shifts that finish after midnight.
Counting the days between two dates. Try the Days Between Dates Calculator
Working out take-home pay after tax.

The formula

Hours worked = finish time − start time − unpaid breaksDecimal hours = minutes worked ÷ 60Weekly pay = decimal hours a week × hourly pay

Where:

Night shifts: if the finish time is earlier than the start, 24 hours are added

Clock changes in spring and autumn aren't allowed for.

Worked example

From 09:00 to 17:30 is 8 h 30 min.

Less 30 minutes of breaks: 8 h a shift, or 8 hours in decimal hours
Over 5 days: 40 h a week
At £15 an hour: £600.00 a week before tax

Questions people ask

What are decimal hours?

Hours written as a single number instead of hours and minutes, which makes pay easy to work out. 7 hours 30 minutes is 7.5 decimal hours, 7 hours 15 minutes is 7.25, and 7 hours 45 minutes is 7.75. Divide the minutes by 60 to convert.

Should breaks be included?

Take off unpaid breaks only. If your employer pays you for a break, it counts as working time. In the UK, adults working more than 6 hours a day are usually entitled to a 20-minute break, which employers don't have to pay for.

How do I work out a night shift?

Enter the times as they are, for example 22:00 to 06:00. When the finish time is earlier than the start, the calculator counts it as finishing the next day: 8 hours, less any breaks.

Last checked 25 October 2026