Hours calculator
Hours worked, in hours and minutes and as a decimal.
Enter your start time, finish time and break, and this hours calculator shows the time worked straight away. The answer appears twice: in hours and minutes, the way you count in your head, and as decimal hours, the way timesheets and payroll need it. Add several days to get the weekly total. Night shifts past midnight are handled correctly.
From hours and minutes to decimal hours
Seven hours and 45 minutes is not 7.45 hours but 7.75. It is the most common mistake on timesheets. To convert, divide the minutes by 60: 45 divided by 60 is 0.75. A quarter of an hour is 0.25, half an hour 0.5 and three quarters 0.75. The calculator shows both forms side by side, so you never have to convert.
Example: a full working week
Monday 8:00 to 16:30 with a 30 minute break: 8 hours. Tuesday 7:45 to 16:00 with 45 minutes: 7 hours 30. Wednesday 9:00 to 18:15 with 45 minutes: 8 hours 30. Thursday mornings only, 8:00 to 12:00 with no break: 4 hours. Friday a night shift, 22:00 to 6:00 with 30 minutes: 7 hours 30.
That is 35 hours and 30 minutes altogether, or 35.5 decimal hours. With an hourly rate of £12, the calculator multiplies 35.5 by 12 and shows £426, before tax and National Insurance.
Shifts past midnight
If a shift starts at 22:00 and finishes at 6:00, the finish time is earlier than the start time. The calculator recognises this and counts 8 hours, not minus 16. Many other calculators show an error here. To count the days between two dates, use the days calculator.
Frequently asked questions
How do I work out my hours worked?
Take the start time from the finish time, then take off the break. 9:00 to 17:00 with a 30 minute break is 7 hours 30 minutes, or 7.5 decimal hours.
How do I convert minutes to decimal hours?
Divide the minutes by 60. 15 minutes is 0.25 hours, 30 minutes is 0.5 and 45 minutes is 0.75.
Why is 7 hours 45 minutes not 7.45 hours?
Because an hour has 60 minutes, not 100. 45 minutes is three quarters of an hour, so 0.75.
Does it work for night shifts?
Yes. If the finish time is before the start time, the calculator treats the shift as running past midnight.
Can it work out my pay?
Yes. Enter your hourly rate and the calculator multiplies it by the decimal hours. The result is gross, before tax and National Insurance.
Made by Kashif Sulehria, Lahore
Updated on