How to use this calculator
- 1
Choose the format you are converting from.
- 2
Enter a duration, decimal hours, or total minutes.
- 3
Get all three formats. Decimal-to-minute conversions round to the nearest whole minute.
The calculation, explained
Decimal hours = hours + minutes ÷ 60. Total minutes = decimal hours × 60, rounded to the nearest minute when necessary.
A QUICK EXAMPLE
8 hours and 30 minutes
8.50 decimal hours · 510 minutesFrequently asked questions
Is 8.30 hours the same as 8 hours 30 minutes?+
No. 8.30 decimal hours is 8 hours 18 minutes because 0.30 × 60 = 18. 8 hours 30 minutes is 8.50 decimal hours.
How does rounding work?+
Durations are stored as whole minutes. Decimal inputs are rounded to the nearest minute, and decimal results are displayed to two places. A small rounding difference is possible when converting a displayed decimal back.