Convert both directions
Decimal Hours Calculator
Convert hours and minutes to decimal hours—or convert a decimal value back to hours and minutes.
Convert time
Decimal hours
8.50
8 hours 30 minutes
How to convert minutes to decimal hours
Divide the minutes by 60, then add the whole hours. For 8 hours 30 minutes: 30 ÷ 60 = 0.50, so the total is 8.50 hours.
Decimal hours = hours + (minutes ÷ 60)
Decimal hours are not clock minutes
The digits after the decimal point are a fraction of an hour. For example, 7.25 hours means 7 hours 15 minutes—not 7 hours 25 minutes.
Frequently asked questions
What is 45 minutes in decimal hours?
45 ÷ 60 = 0.75, so 45 minutes is 0.75 hours.
Why can the converted value differ by one minute?
A decimal rounded to two places may not represent an exact whole number of minutes. ClockSlate rounds the reverse conversion to the nearest minute.