How to use it
- Enter the hours and minutes, or type a value like 38:20 in the box.
- Read the decimal hours, rounded to two places. Some payroll systems round to quarters or tenths; those are shown too.
- Multiply by your hourly rate to get pay, or use the pay field to do it here.
The formula
Decimal hours = hours + (minutes ÷ 60)
Example: 45 ÷ 60 = 0.75, so 7:45 = 7.75
Example: A week of 38 hours 20 minutes is 38 + 20 ÷ 60 = 38.33 hours. At $22.50 an hour that's 38.33 × 22.50 = $862.50.
Minutes to decimal hours chart
| Minutes | Decimal |
|---|---|
| 1 | 0.02 |
| 2 | 0.03 |
| 3 | 0.05 |
| 4 | 0.07 |
| 5 | 0.08 |
| 6 | 0.10 |
| 7 | 0.12 |
| 8 | 0.13 |
| 9 | 0.15 |
| 10 | 0.17 |
| 11 | 0.18 |
| 12 | 0.20 |
| 13 | 0.22 |
| 14 | 0.23 |
| 15 | 0.25 |
| 16 | 0.27 |
| 17 | 0.28 |
| 18 | 0.30 |
| 19 | 0.32 |
| 20 | 0.33 |
| Minutes | Decimal |
|---|---|
| 21 | 0.35 |
| 22 | 0.37 |
| 23 | 0.38 |
| 24 | 0.40 |
| 25 | 0.42 |
| 26 | 0.43 |
| 27 | 0.45 |
| 28 | 0.47 |
| 29 | 0.48 |
| 30 | 0.50 |
| 31 | 0.52 |
| 32 | 0.53 |
| 33 | 0.55 |
| 34 | 0.57 |
| 35 | 0.58 |
| 36 | 0.60 |
| 37 | 0.62 |
| 38 | 0.63 |
| 39 | 0.65 |
| 40 | 0.67 |
| Minutes | Decimal |
|---|---|
| 41 | 0.68 |
| 42 | 0.70 |
| 43 | 0.72 |
| 44 | 0.73 |
| 45 | 0.75 |
| 46 | 0.77 |
| 47 | 0.78 |
| 48 | 0.80 |
| 49 | 0.82 |
| 50 | 0.83 |
| 51 | 0.85 |
| 52 | 0.87 |
| 53 | 0.88 |
| 54 | 0.90 |
| 55 | 0.92 |
| 56 | 0.93 |
| 57 | 0.95 |
| 58 | 0.97 |
| 59 | 0.98 |
| 60 | 1.00 |
Good to know
- The most common mistake is writing 7:30 as 7.30. It's 7.50, because 30 minutes is half an hour.
- Quarter-hour values to remember: 15 min = .25, 30 min = .50, 45 min = .75.
- Tenth-hour (6-minute) increments are standard in legal and consulting billing: 6 min = .1, 12 min = .2, and so on.
Questions
How do I convert minutes to decimal hours?
Divide the minutes by 60. 20 minutes ÷ 60 = 0.33, 40 minutes ÷ 60 = 0.67, 50 minutes ÷ 60 = 0.83.
What is 7 hours 30 minutes in decimal?
7.5 hours. 30 minutes is half an hour, so 7:30 = 7.50.
What is 8 hours 45 minutes in decimal?
8.75 hours, because 45 ÷ 60 = 0.75.
What is 15 minutes in decimal?
0.25 hours. 15 minutes is a quarter of an hour.
Why does payroll use decimal hours?
Pay is hours × rate, and you can only multiply a rate by a decimal number. 7 hours 45 minutes at $20 is 7.75 × 20 = $155, not 7.45 × 20.