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Time to Decimal Calculator
Turn hours and minutes into decimal hours for timesheets and payroll.
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How to convert time to decimal
Decimal hours = hours + minutes ÷ 60 + seconds ÷ 3600.
Example: 7 h 45 min → 7 + 45/60 = 7 + 0.75 = 7.75 hours. With 30 seconds: 7 + 0.75 + 0.0083 = 7.7583.
Payroll usually rounds to two decimals, so 7 h 20 min is 7.33 hours.
Minutes to decimal chart
| Minutes | Decimal hours |
|---|---|
| 1 min | 0.0167 |
| 5 min | 0.0833 |
| 6 min | 0.1 |
| 10 min | 0.1667 |
| 12 min | 0.2 |
| 15 min | 0.25 |
| 20 min | 0.3333 |
| 25 min | 0.4167 |
| 30 min | 0.5 |
| 36 min | 0.6 |
| 40 min | 0.6667 |
| 45 min | 0.75 |
| 48 min | 0.8 |
| 50 min | 0.8333 |
| 55 min | 0.9167 |
Frequently asked questions
What is 30 minutes in decimal?
0.5 hours. 15 minutes is 0.25 and 45 minutes is 0.75.
How do I convert 8 hours 20 minutes to decimal?
8 + 20/60 = 8.33 hours (8.3333 unrounded).
Why do timesheets use decimal hours?
Pay is rate × hours, and that multiplication only works with decimals. 7:30 × $20 isn't directly computable, but 7.5 × $20 = $150 is.
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