Decimal Time Converter
Turn decimal time such as 8.5 into hours and minutes (8:30), or go the other way. Pick the direction, type a value, read the answer. Plain minutes to decimal hours is here too.
Example: 8.5
Hours and minutes
8:30h:mm
With seconds: 8:30:00
How it works
Decimal to time: multiply the decimal part by 60 to get minutes. Time to decimal: add the minutes divided by 60 to the hours. Minutes to decimal: divide by 60. Here, decimal time means decimal hours as used on timesheets and in payroll.
Worked example: Convert 8.75 decimal hours
- Whole hours: 8
- 0.75 × 60 = 45 minutes
- Put them together: 8 hours 45 minutes
8.75 decimal hours = 8:45
Minutes to decimal hours in 5-minute steps
For every single minute from 1 to 60, see the minutes to decimal chart.
| Minutes | Decimal (2 places) | Exact |
|---|---|---|
| 5 | 0.08 | 0.0833 |
| 10 | 0.17 | 0.1667 |
| 15 | 0.25 | 0.25 |
| 20 | 0.33 | 0.3333 |
| 25 | 0.42 | 0.4167 |
| 30 | 0.50 | 0.50 |
| 35 | 0.58 | 0.5833 |
| 40 | 0.67 | 0.6667 |
| 45 | 0.75 | 0.75 |
| 50 | 0.83 | 0.8333 |
| 55 | 0.92 | 0.9167 |
| 60 | 1.00 | 1.00 |
Frequently asked questions
What is decimal time?
On this site it means decimal hours: a length of time written as one number, such as 7.5 for seven and a half hours. It is not the historical French decimal time that split the day into ten hours, which this tool does not convert.
Is decimal time the same as military time?
No. Military (24-hour) time is a time of day, like 17:30. Decimal time is a length of time. 17:30 on a 24-hour clock is half past five in the evening; 17.5 decimal hours is seventeen and a half hours.
How do I convert minutes to decimal?
Divide the minutes by 60. 45 minutes is 0.75 hours, 20 minutes is 0.33 hours and 135 minutes is 2.25 hours.
Which direction do I pick for 8.5 hours?
Decimal to time. It gives 8:30. Pick time to decimal when you have something like 8:30 and want 8.50.
Why do my results differ from another calculator?
Usually rounding. Some tools show 2 decimals and some show 4, and some round ties down. Check the rounding mode and the number of decimals; this converter rounds ties up.