Hours to Decimal Calculator
Type one time per line, such as 7:45 or 7h 30m, to get decimal hours and a running total. Switch the direction to turn 7.75 back into 7:45.
Hours and minutes can be written as 7:45, 7:45:30, 7h 45m, 7h or 45m.
Worked examples
One day
7:45
7.75 hours
45 divided by 60 is 0.75.
A short week
7:45, 8:20, 7:30, 8:00, 6:15
37.83 hours (37:50)
Added from exact minutes, then rounded.
Back to minutes
7.2 hours
7:12
0.2 of an hour is 12 minutes.
About Hours to Decimal Calculator
Payroll systems, invoices and time recording tools often want hours as a decimal. 7 hours 45 minutes is 7.75 hours, not 7.45, because the part after the point is a share of an hour: the minutes divided by 60. Fifteen minutes is 0.25, thirty minutes is 0.5, and twenty minutes is 0.33 when rounded to two places. Multiply the decimal hours by an hourly rate to get the pay or the amount to bill.
Type one time per line, such as 7:45, 8h 20m or 45m, and the calculator converts each one and adds them up, so a whole week of timesheet lines can be done at once. The total is worked out from exact seconds and rounded only at the end, which avoids the small errors you get from rounding each day. Switch the direction to turn decimal hours such as 7.2 back into hours and minutes (7:12). A short table lists common minutes as decimals.
How to use Hours to Decimal Calculator
- Choose hours and minutes to decimal, or decimal to hours and minutes.
- Type one value on each line.
- Pick how many decimal places you want.
- Read each converted line and the total.
Common uses
- Filling in a timesheet for payroll
- Billing a client by the hour
- Adding up shifts written as hours and minutes
- Turning a decimal from a spreadsheet back into hours and minutes
Frequently asked questions
How do I convert 7:45 to decimal hours?
Divide the minutes by 60 and add them to the hours. 45 divided by 60 is 0.75, so 7:45 is 7.75 hours.
How many decimal places should I use?
Two is normal for timesheets. If you multiply by a rate, keep more places and round the final money amount to the penny.
What is 20 minutes as a decimal?
20 divided by 60 is 0.3333, shown as 0.33 at two places.
Can the total go over 24 hours?
Yes. A total of 37 hours 50 minutes is shown as 37:50, or 37.83 in decimal.
Why does 7.2 hours equal 7:12?
The 0.2 is a fifth of an hour, which is 12 minutes.