15 minutes on a timesheet
15 minutes is 0.25 hours. 0.15 hours is 9 minutes. Type one value and the others update.
Your inputs stay in this browser. Double-check any numbers before acting on the result.
The converter uses whole minutes. Use Decimal hours unless your form asks for rounding. Rounded values use the nearest block, with midpoints rounded up.
Use the value your timesheet asks for
- Decimal hours (2 places)
- 0.25
- Nearest tenth (6 min)
- 0.3
- Nearest quarter hour (15 min)
- 0.25
15 minutes sits between 12 minutes (0.2) and 18 minutes (0.3).
| Minutes | Decimal | Tenths | Quarter hour |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 1 | 0.02 | 0 | 0 |
| 2 | 0.03 | 0 | 0 |
| 3 | 0.05 | 0.1 | 0 |
| 4 | 0.07 | 0.1 | 0 |
| 5 | 0.08 | 0.1 | 0 |
| 6 | 0.1 | 0.1 | 0 |
| 7 | 0.12 | 0.1 | 0 |
| 8 | 0.13 | 0.1 | 0.25 |
| 9 | 0.15 | 0.2 | 0.25 |
| 10 | 0.17 | 0.2 | 0.25 |
| 11 | 0.18 | 0.2 | 0.25 |
| 12 | 0.2 | 0.2 | 0.25 |
| 13 | 0.22 | 0.2 | 0.25 |
| 14 | 0.23 | 0.2 | 0.25 |
| 15 | 0.25 | 0.3 | 0.25 |
| 16 | 0.27 | 0.3 | 0.25 |
| 17 | 0.28 | 0.3 | 0.25 |
| 18 | 0.3 | 0.3 | 0.25 |
| 19 | 0.32 | 0.3 | 0.25 |
| 20 | 0.33 | 0.3 | 0.25 |
| 21 | 0.35 | 0.4 | 0.25 |
| 22 | 0.37 | 0.4 | 0.25 |
| 23 | 0.38 | 0.4 | 0.5 |
| 24 | 0.4 | 0.4 | 0.5 |
| 25 | 0.42 | 0.4 | 0.5 |
| 26 | 0.43 | 0.4 | 0.5 |
| 27 | 0.45 | 0.5 | 0.5 |
| 28 | 0.47 | 0.5 | 0.5 |
| 29 | 0.48 | 0.5 | 0.5 |
| 30 | 0.5 | 0.5 | 0.5 |
| 31 | 0.52 | 0.5 | 0.5 |
| 32 | 0.53 | 0.5 | 0.5 |
| 33 | 0.55 | 0.6 | 0.5 |
| 34 | 0.57 | 0.6 | 0.5 |
| 35 | 0.58 | 0.6 | 0.5 |
| 36 | 0.6 | 0.6 | 0.5 |
| 37 | 0.62 | 0.6 | 0.5 |
| 38 | 0.63 | 0.6 | 0.75 |
| 39 | 0.65 | 0.7 | 0.75 |
| 40 | 0.67 | 0.7 | 0.75 |
| 41 | 0.68 | 0.7 | 0.75 |
| 42 | 0.7 | 0.7 | 0.75 |
| 43 | 0.72 | 0.7 | 0.75 |
| 44 | 0.73 | 0.7 | 0.75 |
| 45 | 0.75 | 0.8 | 0.75 |
| 46 | 0.77 | 0.8 | 0.75 |
| 47 | 0.78 | 0.8 | 0.75 |
| 48 | 0.8 | 0.8 | 0.75 |
| 49 | 0.82 | 0.8 | 0.75 |
| 50 | 0.83 | 0.8 | 0.75 |
| 51 | 0.85 | 0.9 | 0.75 |
| 52 | 0.87 | 0.9 | 0.75 |
| 53 | 0.88 | 0.9 | 1 |
| 54 | 0.9 | 0.9 | 1 |
| 55 | 0.92 | 0.9 | 1 |
| 56 | 0.93 | 0.9 | 1 |
| 57 | 0.95 | 1 | 1 |
| 58 | 0.97 | 1 | 1 |
| 59 | 0.98 | 1 | 1 |
| 60 | 1 | 1 | 1 |
Keep exact minutes on your device. Convert them when a form wants decimal hours.
Why 15 minutes is 0.25, not 0.15
A timesheet hour is 60 minutes. Decimal hours show a fraction of that hour: 15 ÷ 60 = 0.25.
Writing 0.15 means nine minutes. The same mix-up turns 1 hour 15 minutes into 1.15, which means 1 hour and 9 minutes. Use 1.25 instead.
Choose the value your form needs
Use Decimal hours when the form asks for a decimal value. Tenths and quarter hours round the duration, so use them only when your form requires that rounding.
| Minutes | Decimal hours | Tenths (6 min) | Quarter hour |
|---|---|---|---|
| 9 | 0.15 | 0.2 | 0.25 |
| 15 | 0.25 | 0.3 | 0.25 |
| 20 | 0.33 | 0.3 | 0.25 |
| 45 | 0.75 | 0.8 | 0.75 |
The converter uses whole minutes and displays decimal hours to two places. Tenths and quarter hours round to the nearest block, with midpoints rounded up. That is why 15 minutes appears as 0.3 in tenths.
Timesheet rounding explains how rounding can change the hours you report.
Keep the original time too
A form can ask for 0.3 hours, but your own record can still say 15 minutes. Keeping the original duration helps you explain the difference later.
Convert a duration here when a client form wants 0.25 instead of 15 minutes.
If you already have a sheet of rows, the billable hours calculator totals their billable time.
Questions and answers
What is 15 minutes on a timesheet?
15 minutes is 0.25 hours. Writing 0.15 would mean 9 minutes, because 0.15 is 15 hundredths of an hour, not 15 minutes.
What is 45 minutes on a timesheet?
45 minutes is 0.75 hours. With nearest-tenth rounding and midpoints rounded up, it is 0.8 hours.
What is 20 minutes on a timesheet?
20 minutes is about 0.33 hours when you divide by 60. Rounded to the nearest tenth it is 0.3 hours; rounded to the nearest quarter hour it is 0.25 hours.
Why is 0.15 hours not 15 minutes?
Decimal hours are fractions of a 60-minute hour, not hours and minutes written with a dot. 0.15 × 60 = 9 minutes.
Does this converter round my timesheet?
It rounds inputs to whole minutes and displays decimal hours to two places. Tenths and quarter hours round to the nearest 6-minute or 15-minute block, with midpoints rounded up. Use the rounding rule your form requires.