Hours to Minutes Converter (h to min)
1 hour = 60 minutes. Turn decimal hours from time logs, flight logbooks and driving limits into minutes, with hours to minutes and minutes to hours charts.
Minute (min) = Hour (h) × 60
Hour (h): An hour is 60 minutes, or exactly 3,600 seconds, and is accepted for use with the SI. The fixed-duration day used here contains 24 hours.
Minute (min): A minute is exactly 60 seconds. It is not an SI unit, but the BIPM lists it with the hour and day as units accepted for use with the SI.
| Hour (h) | Minute (min) |
|---|---|
| 1 | 60 |
| 5 | 300 |
| 10 | 600 |
| 25 | 1500 |
| 50 | 3000 |
| 100 | 6000 |
Many systems store time as decimal hours: timesheet exports, flight logbooks, equipment hour meters and fitness apps. People read time in hours and minutes, so 2.4 h needs turning into 2 hours 24 minutes, or into 144 minutes when a form wants a single number. A run logged as 0.75 h is 45 minutes, and a 7.5 h shift is 450 minutes.
Pilots and aircraft owners meet this daily: a Hobbs meter counts running time in tenths of an hour, so a reading that advances by 1.3 means 1 hour 18 minutes. Transport rules are written in hours too, such as the 11 hours of driving that US federal rules allow a truck driver within a 14-hour window.
How to use this tool
- Type a value in the Hour box to see it in minutes, or type in the Minute box to convert the other way.
- Press ⇄ to swap the two units, or Load example for a typical value.
- Check the charts below for common values; for other units, open the Time converter.
Formula
Minute (min) = Hour (h) × 60
Hour (h) = Minute (min) × 0.0166666666667
Both factors come from exact definitions: 1 minute = 0.0166666666667 hours and 1 hour = 60 minutes (shown to 12 significant digits).
Example
Two conversions worked with the same factors the converter uses:
2.4 h × 60 = 144 min
135 min × 0.0166666666667 = 2.25 h
Hour to Minute chart
Common values from hours to minutes, rounded to four decimal places.
| Hour (h) | Minute (min) |
|---|---|
| 0.05 | 3 |
| 0.15 | 9 |
| 0.35 | 21 |
| 0.45 | 27 |
| 0.55 | 33 |
| 0.65 | 39 |
| 0.85 | 51 |
| 0.95 | 57 |
| 1 | 60 |
| 1.1 | 66 |
| 1.2 | 72 |
| 1.3 | 78 |
| 1.6 | 96 |
| 1.8 | 108 |
| 2 | 120 |
| 2.2 | 132 |
| 2.4 | 144 |
| 3 | 180 |
| 4.5 | 270 |
| 7.5 | 450 |
| 9 | 540 |
| 11 | 660 |
| 14 | 840 |
| 24 | 1,440 |
Minute to Hour chart
The reverse direction for values people often look up.
| Minute (min) | Hour (h) |
|---|---|
| 4 | 0.0667 |
| 8 | 0.1333 |
| 16 | 0.2667 |
| 22 | 0.3667 |
| 27 | 0.45 |
| 33 | 0.55 |
| 44 | 0.7333 |
| 55 | 0.9167 |
| 65 | 1.0833 |
| 70 | 1.1667 |
| 95 | 1.5833 |
| 135 | 2.25 |
| 200 | 3.3333 |
| 600 | 10 |
Limits and logs kept in hours
| Item | Hour (h) | Minute (min) |
|---|---|---|
| Hobbs meter step, one tenth of an hour | 0.1 | 6 |
| Adult sleep, CDC minimum recommendation | 7 | 420 |
| EU truck driver, normal daily driving limit | 9 | 540 |
| US truck driver, daily driving limit | 11 | 660 |
| US truck driver, on-duty window | 14 | 840 |
| FLSA standard workweek before overtime | 40 | 2,400 |
Quick mental estimate
Multiply the whole number by 60 and the decimal part by 60 separately: 2.4 h → 120 + 24 = 144 min. Each tenth of an hour is exactly 6 minutes, which makes logbook figures easy to read.
Use the converter or the charts when the exact figure matters.
The two units
Hour (h): An hour is 60 minutes, or exactly 3,600 seconds, and is accepted for use with the SI. The fixed-duration day used here contains 24 hours.
Minute (min): A minute is exactly 60 seconds. It is not an SI unit, but the BIPM lists it with the hour and day as units accepted for use with the SI.
Frequently asked questions
How many minutes is 1.5 hours?
1.5 hours is 90 minutes. The part after the decimal point is a fraction of 60 minutes, so .5 means 30 minutes, not 50.
What is 0.7 hours in minutes?
0.7 h is 42 minutes. Tenths of an hour always convert in 6-minute steps: 0.1 h is 6 minutes, 0.2 h is 12 minutes, and so on.
How long can a US truck driver drive, in minutes?
The federal limit is 11 hours of driving, 660 minutes, and a 30-minute break is required once a driver has driven for 8 hours. The EU limit is 9 hours, 540 minutes, on a normal day, and it may be extended to 10 hours twice a week.
How precise is the result?
The converter uses the exact definitions above with browser floating-point arithmetic and shows up to 12 significant digits. The charts round to four decimal places for reading.
Sources
Last updated:
Page address with these inputs: https://kakao.mobile/tools/hour-to-minute-converter/
Cite or embed this tool
kakaoCalc. (2026, November 8). Hours to Minutes Converter (h to min). https://kakao.mobile/tools/hour-to-minute-converter/
“Hours to Minutes Converter (h to min).” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/hour-to-minute-converter/.
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