Decimal hours conversion chart
To convert minutes to decimal hours, divide by 60: 45 minutes is 0.75, so 7:45 is 7.75 hours. Use the converter both ways or print the 1–60 minute chart.
Minutes to decimal hours converter
Minutes to decimal hours chart (1–60 minutes)
Decimal = minutes ÷ 60, rounded to 2 places (half up).
| Min | Decimal | Min | Decimal | Min | Decimal | Min | Decimal |
|---|---|---|---|---|---|---|---|
| 1 | 0.02 | 16 | 0.27 | 31 | 0.52 | 46 | 0.77 |
| 2 | 0.03 | 17 | 0.28 | 32 | 0.53 | 47 | 0.78 |
| 3 | 0.05 | 18 | 0.30 | 33 | 0.55 | 48 | 0.80 |
| 4 | 0.07 | 19 | 0.32 | 34 | 0.57 | 49 | 0.82 |
| 5 | 0.08 | 20 | 0.33 | 35 | 0.58 | 50 | 0.83 |
| 6 | 0.10 | 21 | 0.35 | 36 | 0.60 | 51 | 0.85 |
| 7 | 0.12 | 22 | 0.37 | 37 | 0.62 | 52 | 0.87 |
| 8 | 0.13 | 23 | 0.38 | 38 | 0.63 | 53 | 0.88 |
| 9 | 0.15 | 24 | 0.40 | 39 | 0.65 | 54 | 0.90 |
| 10 | 0.17 | 25 | 0.42 | 40 | 0.67 | 55 | 0.92 |
| 11 | 0.18 | 26 | 0.43 | 41 | 0.68 | 56 | 0.93 |
| 12 | 0.20 | 27 | 0.45 | 42 | 0.70 | 57 | 0.95 |
| 13 | 0.22 | 28 | 0.47 | 43 | 0.72 | 58 | 0.97 |
| 14 | 0.23 | 29 | 0.48 | 44 | 0.73 | 59 | 0.98 |
| 15 | 0.25 | 30 | 0.50 | 45 | 0.75 | 60 | 1.00 |
How to convert time to decimal hours
Hours and minutes use base 60, but pay is calculated in base 10. To turn a time like 7:45 into something you can multiply by an hourly rate, keep the whole hours and convert only the minutes: divide them by 60.
Decimal hours = hours + minutes ÷ 60
Minutes = (decimal hours − whole hours) × 60
Worked examples
| Time worked | Calculation | Decimal hours |
|---|---|---|
| 7:45 | 7 + 45 ÷ 60 | 7.75 |
| 8:20 | 8 + 20 ÷ 60 = 8.333… | 8.33 |
| 6:07 | 6 + 7 ÷ 60 = 6.1166… | 6.12 |
| 38:30 | 38 + 30 ÷ 60 | 38.50 |
Going the other way, 7.75 hours is 0.75 × 60 = 45 minutes, so 7:45. And 8.33 hours is 0.33 × 60 = 19.8, which rounds to 20 minutes, so 8:20.
Paying from decimal hours
Once your time is in decimal, multiply by the rate. 38:30 at $17.50 an hour is 38.5 × $17.50 = $673.75. Converting each day and then adding can give a slightly different total than adding the minutes first, because of rounding. This site always adds whole minutes first and converts once at the end.
Common mistakes
- Reading the minutes as a decimal: 7:30 is 7.5 hours, not 7.3.
- Rounding too early: converting every punch to decimal before adding can drift by a few cents a week.
- Mixing up rounding and converting: rounding a punch to the nearest 15 minutes is a timekeeping policy; converting minutes to decimal is just arithmetic. Federal rules accept rounding to the nearest 5 minutes, tenth or quarter of an hour only if it does not underpay over time (29 CFR 785.48).
Rounding to tenths and quarter hours
Some employers record time in tenths of an hour (6-minute blocks) or quarter hours (15-minute blocks) instead of exact minutes. That is rounding, which changes the time itself, not converting. Rounding to the nearest tenth turns 3 to 8 minutes into 0.1 hour; rounding to the nearest quarter hour turns 8:07 into 8:00 and 8:08 into 8:15. Federal rules accept these methods only if, over time, they do not underpay employees for the time they actually work.
| Minutes | Exact decimal | Nearest tenth (6 min) | Nearest quarter (15 min) |
|---|---|---|---|
| 5 | 0.08 | 0.1 | 0.00 |
| 10 | 0.17 | 0.2 | 0.25 |
| 20 | 0.33 | 0.3 | 0.25 |
| 40 | 0.67 | 0.7 | 0.75 |
| 50 | 0.83 | 0.8 | 0.75 |
The time card calculator can apply 5, 6 or 15-minute rounding to each punch; the exact rule is on how we calculate. When you write times on a paper card, follow how to fill out a time card and record the real minutes.
To get hours worked from clock times first, use the hours calculator. For a week with lunch and overtime, use the time card calculator. UK and Australian readers may prefer the timesheet calculator with 24-hour times.
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Frequently asked questions
How do I convert minutes to decimal hours?
Divide the minutes by 60. 45 minutes ÷ 60 = 0.75, so 7 hours 45 minutes is 7.75 hours. Round to two decimal places for payroll.
How do I convert decimal hours back to minutes?
Multiply the decimal part by 60. For 7.75 hours, 0.75 × 60 = 45, so it is 7 hours 45 minutes.
What is 8 hours 20 minutes in decimal?
20 ÷ 60 = 0.333…, which rounds to 0.33, so 8:20 is 8.33 hours.
Why does my payroll use decimals?
Pay is hours times rate, and that multiplication only works with decimal hours. 7:45 × $20 means nothing, but 7.75 × $20 = $155.00.
Is 7.5 hours the same as 7 hours 50 minutes?
No. 7.5 hours is 7 hours 30 minutes. This is the most common time card mistake; always convert minutes by dividing by 60.
What is a tenth of an hour?
Six minutes. Some employers round punches to the nearest tenth (0.1 hour): 1 or 2 minutes rounds to 0, 3 to 8 minutes rounds to 0.1, 9 to 14 minutes rounds to 0.2, and so on.
Can I print the chart?
Yes. Press “Print the minutes chart” to print only the 1–60 minute table, in black on white.
Updated · Written by the HoursLog team