Hours to Decimal Calculator
Convert hours and minutes to decimal hours for payroll and billing, and back.
About the Hours to Decimal Calculator
Type a time as hours and minutes (7:45) to get decimal hours, or type decimal hours (7.75) to get hours and minutes. A table of common minute values helps when filling in a timesheet by hand.
Payroll and invoices need decimal hours: 7 hours 45 minutes is 7.75 hours. Divide the minutes by 60 and add them to the hours.
The formula
Decimal hours = hours + minutes ÷ 60
Worked example
7 hours 45 minutes
- 45 ÷ 60 = 0.75
- 7:45 = 7.75 decimal hours
- Backwards: 7.3 hours = 7 h + 0.3 × 60 min = 7 h 18 min
Questions people ask
Is 7.30 hours 7 hours 30 minutes?
No: 7.30 decimal hours is 7 hours 18 minutes. 7 h 30 min is 7.5.
How do I round for billing?
Many firms bill in 6-minute (0.1 h) or 15-minute (0.25 h) increments.
What is 20 minutes in decimal?
0.333 hours (20 ÷ 60).