Clock and hours · rules read October 11, 2026
Minutes to decimal hours chart
Look up any number of minutes in the chart, or use the converter for a full time in hours and minutes.
Written by Radif Partners · How the hours are counted · Editorial policy
7 h 50 min in decimal hours
7.83
7.8333 exactly · 7.80 h = 7 h 48 min
| Total minutes | 470 |
| Decimal, two places (payroll) | 7.83 |
| 7.80 decimal hours in h:mm | 7:48 |
Decimal hours = hours + minutes ÷ 60. 15 minutes = 0.25, 30 = 0.5, 45 = 0.75. How this is calculated.
To convert minutes to decimal hours, divide the minutes by 60: 15 minutes is 0.25 hours, 30 minutes is 0.5, 45 minutes is 0.75, and 37 minutes is 0.62 once rounded to two places. The chart below lists every value from 1 to 60 minutes, computed and rounded to hundredths the way payroll records them, so a time card total such as 7 hours 37 minutes can be entered as 7.62 without a calculator. Each minute is worth about 0.0167 hours, and every 6 minutes make exactly one tenth of an hour, which is why many time clocks round to 6-minute steps. Federal regulations accept rounding punches to the nearest 5 minutes, tenth of an hour or quarter hour if it evens out over time (29 CFR 785.48(b)); the second and third charts show which minutes land on each tenth and each quarter, so you can see where your own punches fall.
Decimal hours back to minutes
Hours and minutes
7:18
| Total minutes | 438 |
| Fraction of an hour | 18.0 min |
Every minute from 1 to 60
Read the chart in columns: find the minutes, and the figure next to it is the share of an hour, rounded to the hundredth. Values that are exact, such as 6, 12, 15, 30 and 45 minutes, need no rounding at all. Others repeat forever as decimals, and the chart keeps two places, which is what pay stubs and payroll software print.
| Min | Hours | Min | Hours | Min | Hours | Min | Hours |
|---|---|---|---|---|---|---|---|
| 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 |
A pattern helps when the chart is not at hand. The decimals climb by one sixtieth of an hour for each minute, a little under two hundredths, so the second decimal place jumps irregularly: 0.02, 0.03, 0.05, 0.07, 0.08, 0.10. Every three minutes add exactly 0.05, and every six add exactly 0.1. Starting from the nearest multiple of three and adjusting by a minute or two gets you within a hundredth of the right answer.
The tenth-of-an-hour chart
Time clocks in many workplaces record hours to the tenth, because a tenth of an hour is a clean 6 minutes and a single decimal place is easy to add. Under that system each punch moves to the nearest 6-minute mark. The table shows which minutes past the hour land on each tenth when the clock rounds to the nearest step, as the federal rounding regulation describes.
| Minutes past the hour | Recorded as | Decimal |
|---|---|---|
| 0 to 2 | :00 | 0.0 |
| 3 to 8 | :06 | 0.1 |
| 9 to 14 | :12 | 0.2 |
| 15 to 20 | :18 | 0.3 |
| 21 to 26 | :24 | 0.4 |
| 27 to 32 | :30 | 0.5 |
| 33 to 38 | :36 | 0.6 |
| 39 to 44 | :42 | 0.7 |
| 45 to 50 | :48 | 0.8 |
| 51 to 56 | :54 | 0.9 |
| 57 to 60 | next hour | 1.0 |
The bands are six minutes wide, except at the edges of the hour, so the most a single punch can move is three minutes. That limit is the attraction of tenths over quarters. A worker who clocks in at 8:03 is recorded at 8:06 and loses three minutes, but one who clocks in at 8:02 is recorded at 8:00 and gains two; across many punches the effect should wash out.
The quarter-hour chart
Quarter hours are coarser. Each band is fifteen minutes wide and centered on the quarter, so a punch can move up to seven minutes either way. That is a large swing on a single day, and the regulation tolerates it only because gains and losses are supposed to balance over a period of time. If the punches of a team cluster on one side of the boundary, for instance because everyone clocks in a few minutes early as a habit, the balance is lost.
| Minutes past the hour | Recorded as | Decimal |
|---|---|---|
| 0 to 7 | :00 | 0.00 |
| 8 to 22 | :15 | 0.25 |
| 23 to 37 | :30 | 0.50 |
| 38 to 52 | :45 | 0.75 |
| 53 to 60 | next hour | 1.00 |
A few practical uses follow from these charts. To check a pay stub that shows hours to two decimals, look up the minutes of each day in the first chart and compare. To understand why a time card shows 7.9 when you worked 7 hours 52 minutes, find 52 in the tenth table. And to see what quarter-hour rounding did to a punch, the clock in clock out calculator shows it minute by minute. For whole times rather than single minutes, the hours and minutes converter works in both directions, and the payroll hours calculator converts a full week. The hours-worked fact sheet remains the reference for which minutes count as work in the first place.