Decimal Hours Calculator
Convert hours and minutes to decimal hours, or turn decimal hours back into hours and minutes. Results update instantly in your browser.
How to convert minutes to decimal hours
Divide minutes by 60, then add any whole hours. For 7 hours 45 minutes, 45 ÷ 60 is 0.75, so the result is 7.75 decimal hours.
Decimal hours = hours + (minutes ÷ 60)
How to convert decimals to hours and minutes
Keep the whole number as hours and multiply the decimal part by 60. For 7.75, the whole number is 7 and 0.75 × 60 is 45 minutes, giving 7 hours 45 minutes.
Minutes to decimal hours conversion chart
| Minutes | Decimal hours |
|---|---|
| 5 minutes | 0.0833 |
| 10 minutes | 0.1667 |
| 15 minutes | 0.25 |
| 20 minutes | 0.3333 |
| 30 minutes | 0.50 |
| 45 minutes | 0.75 |
| 60 minutes | 1.00 |
Why decimal hours are used
Payroll, timesheets, invoicing, and spreadsheets often use decimal hours because ordinary arithmetic works directly on them. Clock-style 7:45 means 7 hours 45 minutes; it does not mean 7.45 hours.
Common conversion questions
What is 30 minutes in decimal hours?
Thirty minutes is 0.50 decimal hours because 30 divided by 60 equals 0.5.
What is 15 minutes in decimal hours?
Fifteen minutes is 0.25 decimal hours.