Convert hours and minutes to decimal hours
Enter hours, minutes, and optional seconds to get a decimal-hour equivalent. For example, 7 hours 45 minutes is shown as 7.75 decimal hours.
Quick minutes-to-decimal reference
| Minutes | 2 decimals | 4 decimals |
|---|---|---|
| 0 min | 0.00 | 0.0000 |
| 5 min | 0.08 | 0.0833 |
| 10 min | 0.17 | 0.1667 |
| 15 min | 0.25 | 0.2500 |
| 20 min | 0.33 | 0.3333 |
| 25 min | 0.42 | 0.4167 |
| 30 min | 0.50 | 0.5000 |
| 35 min | 0.58 | 0.5833 |
| 40 min | 0.67 | 0.6667 |
| 45 min | 0.75 | 0.7500 |
| 50 min | 0.83 | 0.8333 |
| 55 min | 0.92 | 0.9167 |
| 60 min | 1.00 | 1.0000 |
Why decimal hours are useful
Decimal time is useful in payroll, billing, spreadsheets, and project tracking. The calculator handles the conversion for you so clock minutes are not mistaken for decimal digits.
7 hours 45 minutes
Entering 7 hours and 45 minutes returns 7.75 decimal hours.
Common questions
Is 7 hours 30 minutes equal to 7.30 hours?
No. Thirty minutes is half of an hour, so 7:30 converts to 7.50 decimal hours.
What are the common quarter-hour conversions?
15 minutes = 0.25 hours, 30 minutes = 0.50 hours, and 45 minutes = 0.75 hours.
Can I convert decimal hours back to clock time?
Yes. Switch the converter mode and enter a non-negative decimal-hour value to get hours, minutes, and seconds.
See how common conversions, boundary values, and reverse conversions are checked on Accuracy & testing.
Decimal to hours conversion is built into this same calculator
Switch the conversion direction to turn a value such as 7.75 decimal hours into 7 hours 45 minutes. Both directions are kept in one tool for convenience and consistency.
For a full shift total before conversion, use the Work Hours & Shift Calculator or Lunch Break Calculator.