Minutes to decimal hours chart (1 to 60)
Every value below is the number of minutes divided by 60, rounded to two decimal places. Read down the column until you find your minute count, then take the decimal next to it. The four column pairs run 1 to 15, 16 to 30, 31 to 45 and 46 to 60, so a full hour fits on fifteen rows.
| Min | Dec | Min | Dec | Min | Dec | Min | Dec |
|---|---|---|---|---|---|---|---|
| 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 |
Four values are worth memorizing because they turn up on almost every time card: 15 minutes is 0.25, 30 minutes is 0.50, 45 minutes is 0.75 and 60 minutes is 1.00. Six minutes is exactly 0.10, which is why one tenth of an hour shows up so often in payroll software.
Why payroll needs decimal hours
A pay stub multiplies hours by a rate. That multiplication only works if hours are a single number, and 7:55 is not a number a spreadsheet can multiply. Convert the clock reading to 7.92 and the arithmetic becomes ordinary decimal math that any payroll system, bank file or tax form can carry forward.
Take a shift that starts at 7:52 AM and ends at 4:19 PM with a 32 minute unpaid lunch. The clock span is 8 hours 27 minutes. Subtract the lunch and the paid time is 7 hours 55 minutes, or 475 minutes. Divide 475 by 60 and you get 7.916666, which the chart rounds to 7.92 at the 55 minute row. At $21.40 an hour, 7.92 hours pays $169.49, while the unrounded 7.916666 hours pays $169.42. Seven cents for one shift is nothing. Ten shifts a period across forty people is not.
Because of that drift, most employers keep the full precision internally and round only the final dollar amount. If you are working by hand, the safer habit is to add the minutes for the whole week first, then convert once. Five shifts of 7 hours 55 minutes are 2,375 minutes, which is 39 hours 35 minutes, or 39.58 hours. Converting each day separately and adding the rounded pieces would have given 39.60 and quietly invented about a minute of work.
If you would rather not run the division at all, the decimal hours calculator converts in both directions, and the timesheet calculator shows every daily total in hh:mm and decimal side by side so you never have to convert a whole week by hand.
Rounding conventions employers actually use
Federal wage rules allow an employer to round recorded time to the nearest 5, 6 or 15 minutes, provided the rounding is neutral and does not consistently favor the employer over time (29 CFR 785.48). Three conventions cover nearly every US time clock.
- Six-minute rounding, also called tenths. The hour splits into ten equal blocks and every block is a clean tenth: 0.1, 0.2, 0.3 and so on up to 1.0. A punch at 8:04 rounds to 8:06 and a punch at 8:02 rounds to 8:00. This is the convention with no ugly decimals, which is why attorneys, clinics and service dispatchers favor it.
- Quarter-hour rounding. The hour splits into four blocks of 15 minutes and lands on 0.25, 0.50, 0.75 or 1.00. The dividing line sits at 7 minutes 30 seconds, the source of the "7 minute rule" you hear on shop floors. Punch at 8:07 and you are paid from 8:00. Punch at 8:08 and you are paid from 8:15.
- Exact minute. No rounding at all. Every minute recorded is a minute paid, which is what the chart above gives you directly.
California is the exception to watch. State court decisions have narrowed rounding sharply, including for meal periods, and exact-minute recording is the safer default there. Anyone tracking California shifts should start from the California overtime calculator instead of a generic rounding policy.
Frequently asked questions
Why is 20 minutes 0.33 and not 0.20?
Because 20 minutes is a third of an hour, not a fifth. Decimal hours measure how much of an hour has passed, so you divide by 60: 20 divided by 60 is 0.3333, shown as 0.33. The digits 0.20 would mean 12 minutes.
Do I round the decimal up or down at the halfway point?
No minute between 1 and 60 lands exactly on a half cent of an hour, so the question never comes up in this chart. Every entry is the nearest two-decimal value with no tie to break.
How do I convert a decimal back into minutes?
Multiply the fraction after the decimal point by 60. For 6.45 hours, 0.45 times 60 is 27, so the time is 6 hours 27 minutes. Reading the chart backwards gives the same answer at the 27 minute row.
My payroll system shows 7.9 instead of 7.92. Is that wrong?
It is rounded to one decimal, which means the hour is being tracked in tenths. One tenth of an hour is 6 minutes, so 7.9 covers anything the system treats as 7 hours 54 minutes. Ask which rounding rule is configured before you assume a shortfall.
Can I print this chart for the break room?
Yes. The table is plain text and prints on one page from your browser. Many supervisors post it next to the punch clock so crews can check their own totals before the period closes.
Does the chart change for overtime hours?
No. Conversion is the same arithmetic whether an hour is straight time, time and a half or double time. Convert the minutes first, then apply the premium to the hours that qualify.
What if a shift crosses midnight?
Count the minutes on each side of midnight and add them before converting. A shift from 10:40 PM to 6:25 AM is 80 minutes before midnight plus 385 minutes after, a total of 465 minutes, which is 7 hours 45 minutes or 7.75 hours.