21 Minutes in Decimal
21 minutes = 0.35 decimal hours. The conversion is 21 ÷ 60 = 0.3500, rounded to 0.35 for timesheets and payroll.
For example, if you worked 8 hours 21 minutes, your payroll entry is 8.35 hours — never "8.21", because the digits after the decimal point are fractions of an hour, not minutes.
Minutes around 21
| Minutes | Decimal hours |
|---|---|
| 18 min | 0.30 |
| 19 min | 0.32 |
| 20 min | 0.33 |
| 21 min | 0.35 |
| 22 min | 0.37 |
| 23 min | 0.38 |
| 24 min | 0.40 |
| 25 min | 0.42 |
| 26 min | 0.43 |
Common uses for 21 minutes
21 minutes is 35.0% of an hour . Multiply your hourly rate by 0.3500 to find out how much 21 minutes of work earns.
Full conversion chart
See the complete minutes-to-decimal chart (1–59) or convert any value with the minutes to decimal calculator.