How to convert 51 minutes to decimal
Decimal hours = minutes ÷ 60, so 51 ÷ 60 = 0.85.
Going back: 0.85 × 60 = 51 minutes. Any whole number of hours plus 51 minutes ends in .85: 1:51 = 1.85, 7:51 = 7.85, 8:51 = 8.85.
Payroll example
You work 8 hours 51 minutes at $21.50 an hour.
- Convert the time: 8 + 51 ÷ 60 = 8 + 0.85 = 8.85 hours.
- Multiply by the rate: 8.85 × $21.50 = $190.28.
Typing 8:51 as 8.51 would pay $182.97 instead: $7.31 too little. Add up a whole week of clock times with the time card calculator.
Minutes near 51 in decimal
| Minutes | Decimal hours | Exact |
|---|---|---|
| 48 | 0.80 | 0.8 |
| 49 | 0.82 | 0.8166… |
| 50 | 0.83 | 0.8333… |
| 51 | 0.85 | 0.85 |
| 52 | 0.87 | 0.8666… |
| 53 | 0.88 | 0.8833… |
| 54 | 0.90 | 0.9 |
See every value from 1 to 59 in the full minutes to decimal chart (printable).
Frequently asked questions
How do I write 51 minutes on a timesheet?
If the timesheet asks for decimal hours, write 0.85. If it asks for hours and minutes, write 0:51. For 8 hours 51 minutes, that is 8.85 in decimal or 8:51 in hours and minutes.
How many minutes is 0.85 hours?
0.85 hours is exactly 51 minutes: 0.85 × 60 = 51.