Time to Decimal Calculator
Convert hours and minutes (or h:mm:ss) to decimal hours for payroll, and decimal hours back to hours and minutes. You can also total a whole week of times in decimal and multiply by your hourly rate.
Time to decimal calculator
Decimal to time
Add up a week of times in decimal
| Day | Time worked (h:mm) | Decimal |
|---|---|---|
| Mon | ||
| Tue | ||
| Wed | ||
| Thu | ||
| Fri | ||
| Sat | ||
| Sun |
How to convert time to decimal
Divide the minutes by 60 (and the seconds by 3,600) and add the result to the hours. 7 hours 45 minutes = 7 + 45 ÷ 60 = 7.75 hours. 8:20 is 8.33 hours, not 8.20. Typing minutes straight in as decimals is one of the most common payroll mistakes: 8.20 hours is only 8 hours 12 minutes.
To go back, multiply the decimal part by 60: 0.6 hours × 60 = 36 minutes, so 6.6 hours is 6:36.
| Time | Decimal hours |
|---|---|
| 1:15 | 1.25 |
| 2:30 | 2.50 |
| 4:45 | 4.75 |
| 7:30 | 7.50 |
| 7:45 | 7.75 |
| 8:15 | 8.25 |
| 8:20 | 8.33 |
| 8:40 | 8.67 |
| 9:10 | 9.17 |
| 37:30 | 37.50 |
| 38:45 | 38.75 |
| 40:00 | 40.00 |
Need clock-in and clock-out times, breaks and overtime? Use the time card calculator.
Common questions
How do I convert 7 hours 45 minutes to decimal?
45 ÷ 60 = 0.75, so it's 7.75 hours.
What is 8 hours 20 minutes in decimal?
8.33 hours (20 ÷ 60 = 0.333).
How do I convert decimal hours to minutes?
Multiply the decimal part by 60. 0.4 hours = 24 minutes, so 5.4 hours is 5 hours 24 minutes.
Why does payroll use decimal hours?
So hours can be multiplied by an hourly rate. 7.75 hours × $20 = $155, which you can't do directly with 7:45.
What is 30 minutes in decimal?
0.5 hours. 15 minutes is 0.25 and 45 minutes is 0.75.
Sources
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General information, not financial, tax or legal advice. Check important numbers with the official source before acting on them.