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Hours to Decimal Converter
Free hours to decimal converter: turn hours and minutes into decimal hours for payroll, total a timesheet, and print a minutes to decimal time card chart.
To convert minutes to decimal hours, divide the minutes by 60 and add the result to the whole hours. 15 minutes is 0.25, 30 minutes is 0.5 and 45 minutes is 0.75, so 7 hours 45 minutes is 7.75 hours. Payroll usually keeps two decimal places; the chart below lists every minute from 1 to 60.
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Convert hours and minutes to decimal
Enter hours and minutes to get decimal hours for payroll, or switch to the timesheet to total a week of time-card entries with optional rounding. Decimal hours = hours + minutes / 60, so 7 hours 45 minutes is 7.75.
What do you want to convert?
- Decimal hours
- 7.75
- More precise (4 places)
- 7.7500
- Total minutes
- 465
- Rounded to nearest quarter hour
- 7.75
7 hours + 45 / 60 = 7.75. Payroll systems usually take two decimal places; keep four if you multiply a large number of hours by a pay rate.
How the math works, with sources
Decimal hours = whole hours + minutes / 60. 45 minutes is 45 / 60 = 0.75, so 7:45 is 7.75 hours. To go back, multiply the decimal part by 60: 0.4 hours is 24 minutes, so 8.4 hours is 8 hours 24 minutes.
Worked example (default timesheet): 8:15 + 7:50 + 8:00 + 9:10 + 6:37 = 8.25 + 7.83 + 8.00 + 9.17 + 6.62 = 39.87 hours (39 h 52 min). At $20 an hour that is $797.33. Rounded to the nearest quarter hour, the rows become 8.25 + 7.75 + 8.00 + 9.25 + 6.50 = 39.75 hours, 7 minutes less for the week.
Federal law lets employers round punch times to the nearest 5 minutes, tenth of an hour or quarter hour, provided that over time the practice does not fail to pay employees for all the time they actually worked (29 CFR 785.48(b)). With quarter-hour rounding, 1 to 7 minutes rounds down and 8 to 14 minutes rounds up. Some states, including California, scrutinise rounding more closely, and many employers now pay exact minutes.
Sources: 29 CFR 785.48 (rounding), DOL Fact Sheet #53 (7-minute rounding example), DOL Fact Sheet #21 (recordkeeping).
Minutes to decimal conversion chart (time card chart)
Every minute from 1 to 60 as a decimal of an hour, rounded to two places. Add the whole hours in front: 8 hours 20 minutes is 8 + 0.33 = 8.33.
| Group 1: Minutes = decimal | Group 2: Minutes = decimal | Group 3: Minutes = decimal | |||
|---|---|---|---|---|---|
| 1 min | 0.02 | 21 min | 0.35 | 41 min | 0.68 |
| 2 min | 0.03 | 22 min | 0.37 | 42 min | 0.70 |
| 3 min | 0.05 | 23 min | 0.38 | 43 min | 0.72 |
| 4 min | 0.07 | 24 min | 0.40 | 44 min | 0.73 |
| 5 min | 0.08 | 25 min | 0.42 | 45 min | 0.75 |
| 6 min | 0.10 | 26 min | 0.43 | 46 min | 0.77 |
| 7 min | 0.12 | 27 min | 0.45 | 47 min | 0.78 |
| 8 min | 0.13 | 28 min | 0.47 | 48 min | 0.80 |
| 9 min | 0.15 | 29 min | 0.48 | 49 min | 0.82 |
| 10 min | 0.17 | 30 min | 0.50 | 50 min | 0.83 |
| 11 min | 0.18 | 31 min | 0.52 | 51 min | 0.85 |
| 12 min | 0.20 | 32 min | 0.53 | 52 min | 0.87 |
| 13 min | 0.22 | 33 min | 0.55 | 53 min | 0.88 |
| 14 min | 0.23 | 34 min | 0.57 | 54 min | 0.90 |
| 15 min | 0.25 | 35 min | 0.58 | 55 min | 0.92 |
| 16 min | 0.27 | 36 min | 0.60 | 56 min | 0.93 |
| 17 min | 0.28 | 37 min | 0.62 | 57 min | 0.95 |
| 18 min | 0.30 | 38 min | 0.63 | 58 min | 0.97 |
| 19 min | 0.32 | 39 min | 0.65 | 59 min | 0.98 |
| 20 min | 0.33 | 40 min | 0.67 | 60 min | 1.00 |
Common increments
| Time | Minutes | Decimal hours |
|---|---|---|
| 0:06 | 6 | 0.10 |
| 0:10 | 10 | 0.17 |
| 0:12 | 12 | 0.20 |
| 0:15 | 15 | 0.25 |
| 0:20 | 20 | 0.33 |
| 0:30 | 30 | 0.50 |
| 0:40 | 40 | 0.67 |
| 0:45 | 45 | 0.75 |
| 0:50 | 50 | 0.83 |
| 1:00 | 60 | 1.00 |
| 1:15 | 75 | 1.25 |
| 1:30 | 90 | 1.50 |
| 2:00 | 120 | 2.00 |
Quarter-hour rounding (7-minute rule)
| Minutes past the hour | Rounded time | Decimal |
|---|---|---|
| :00 to :07 | Round down to :00 | 0.00 |
| :08 to :22 | Round to :15 | 0.25 |
| :23 to :37 | Round to :30 | 0.50 |
| :38 to :52 | Round to :45 | 0.75 |
| :53 to :59 | Round up to the next hour | 1.00 |
Allowed under 29 CFR 785.48(b) only if it averages out and does not, over time, underpay employees for time worked.
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What you get
- A converter for single entries, a full weekly timesheet, and decimal back to hours and minutes
- A printable minutes to decimal chart for every minute from 1 to 60
- Common increments (6, 15, 30, 45 minutes) and a quarter-hour rounding table
- The federal rounding rule (29 CFR 785.48) and the 7-minute rule explained with an example
- A blank time card conversion worksheet in the PDF and CSV
Template preview
A preview of the structure. Download the PDF or CSV for the complete, ready-to-use version.
How to convert hours and minutes to decimal
Decimal hours = whole hours + (minutes / 60). Example: 8 hours 20 minutes = 8 + 20 / 60 = 8 + 0.33 = 8.33 hours. To convert back, multiply the decimal part by 60: 6.4 hours = 6 hours + 0.4 x 60 = 6 hours 24 minutes. Keep two decimal places for payroll, or four if you multiply many hours by a rate and want the cents to match a time-clock export.
Worked example: one week's time card
Exact minutes vs nearest quarter hour (7-minute rule). At $20/hr the exact total pays $797.33.
| Day | Time worked | Decimal hours (exact) | Rounded to quarter hour |
|---|---|---|---|
| Monday | 8:15 | 8.25 | 8.25 |
| Tuesday | 7:50 | 7.83 | 7.75 |
| Wednesday | 8:00 | 8.00 | 8.00 |
| Thursday | 9:10 | 9.17 | 9.25 |
Minutes to decimal chart
Minutes past the hour as a decimal of an hour, rounded to two places.
| Minutes | Decimal hours |
|---|---|
| 1 | 0.02 |
| 2 | 0.03 |
| 3 | 0.05 |
| 4 | 0.07 |
Rounding rules for time cards (29 CFR 785.48)
Federal rules let employers record start and stop times to the nearest 5 minutes, tenth of an hour (6 minutes) or quarter hour (15 minutes), but only if the practice will not, over time, result in failing to pay employees for all the time they actually worked (29 CFR 785.48(b)). With quarter-hour rounding, 1 to 7 minutes past the quarter rounds down and 8 to 14 minutes rounds up, which is why it is called the 7-minute rule. Rounding that only ever goes the employer's way, such as always rounding clock-in up and clock-out down, is not neutral. Several states, including California, look hard at rounding, and many employers now pay to the minute.
Quarter-hour rounding chart
| Minutes past the hour | Rounds to | Decimal |
|---|---|---|
| :00 to :07 | :00 | 0.00 |
| :08 to :22 | :15 | 0.25 |
| :23 to :37 | :30 | 0.50 |
| :38 to :52 | :45 | 0.75 |
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How to use this template
- 1
Total each day in hours and minutes
Subtract time in from time out and take off unpaid meal breaks, so each day reads as hours and minutes, such as 8:15 or 7:50.
- 2
Convert minutes to a decimal
Divide the minutes by 60 (or look them up in the chart) and add the whole hours: 7:50 is 7 + 50 / 60 = 7.83 hours.
- 3
Apply your rounding policy consistently
If you round, use the same neutral increment for every punch, such as the nearest quarter hour, and check that it does not underpay employees over time.
- 4
Add the week and multiply by the pay rate
Add the decimal hours for the workweek, then multiply by the hourly rate. Pay hours over 40 at time and a half for non-exempt employees.
Frequently asked questions
How do you convert minutes to decimal hours?
Divide the minutes by 60. 45 minutes is 45 / 60 = 0.75 hours, 20 minutes is 0.33 and 10 minutes is 0.17. Add the whole hours in front, so 6 hours 20 minutes is 6.33 hours.
What is 7 hours and 45 minutes in decimal?
7.75 hours. 45 minutes divided by 60 is 0.75, added to the 7 whole hours. At $18 an hour, 7.75 hours pays 7.75 x $18 = $139.50.
What are 15, 30 and 45 minutes as decimals?
15 minutes is 0.25 hours, 30 minutes is 0.50 and 45 minutes is 0.75. Six minutes is exactly 0.1 hours, which is why some time clocks round to tenths.
How do you convert decimal hours back to hours and minutes?
Keep the whole hours and multiply the decimal part by 60. 8.6 hours is 8 hours plus 0.6 x 60 = 36 minutes, so 8 hours 36 minutes. 37.25 hours is 37 hours 15 minutes.
What is the 7-minute rule for time cards?
It is how quarter-hour rounding works: 1 to 7 minutes past a quarter hour rounds down and 8 to 14 minutes rounds up. A punch at 8:07 counts as 8:00 and a punch at 8:08 counts as 8:15. The DOL accepts it only when it is applied neutrally.
Is it legal to round employee time?
Under federal law, yes, if the rounding is neutral and over time does not fail to pay employees for all the time they worked (29 CFR 785.48(b)). Rounding that consistently favors the employer is not allowed, and some states, including California, apply stricter scrutiny.