Timecard Guru

3 Hours and 30 Minutes as a Decimal Is 3.50

3 hours and 30 minutes as a decimal is 3.50. 30 ÷ 60 = 0.50, then 3 + 0.50 = 3.50. Decimal hours = minutes / 60. 7:30 = 7.50 hours, not 7.30; 8.15 hours = 8 h 9 min.

Result

3.50 decimal hours

How this conversion works

Keep the 3 whole hours. Convert the minutes on their own: 30 ÷ 60 = 0.50. Add that fraction to the hours: 3 + 0.50 = 3.50.

Write 3.50 on the timesheet. Do not write 3.30. Putting the minutes after the dot is the usual mix-up, and it short-changes the time. 30 minutes is 0.50 of an hour, so 3 hours 30 minutes is 3.50, not 3.30.

Nearby hours and minutes

Hours and minutesDecimal hours
3 hours3.00
3 hours 15 minutes3.25
3 hours 30 minutes3.50
3 hours 45 minutes3.75
4 hours4.00

Nearby pages and the parent tool

Frequently Asked Questions

+What is 3 hours and 30 minutes as a decimal?

3 hours and 30 minutes as a decimal is 3.50.

+How do you convert 3 hours and 30 minutes to decimal hours?

Divide the minutes by 60 and add the hours. 30 ÷ 60 = 0.50, and 3 + 0.50 = 3.50.