How do you convert hours to minutes?
Multiply the number of hours by 60. For a duration written in hours and minutes, convert the hours first and then add the minutes: 3 h 20 gives 180 + 20 = 200 min.
h = min ÷ 60
Common durations in hours and minutes
| 0.25 h | 15 min |
| 0.5 h | 30 min |
| 0.75 h | 45 min |
| 1 h | 60 min |
| 1.5 h | 90 min |
| 2 h | 120 min |
| 3 h | 180 min |
| 7 h (working day) | 420 min |
| 8 h | 480 min |
| 12 h | 720 min |
| 24 h | 1,440 min |
Show every value
- 1 h = 60 min
- 2 h = 120 min
- 3 h = 180 min
- 4 h = 240 min
- 5 h = 300 min
- 6 h = 360 min
- 7 h = 420 min
- 8 h = 480 min
- 9 h = 540 min
- 10 h = 600 min
- 11 h = 660 min
- 12 h = 720 min
- 13 h = 780 min
- 14 h = 840 min
- 15 h = 900 min
- 16 h = 960 min
- 17 h = 1,020 min
- 18 h = 1,080 min
- 19 h = 1,140 min
- 20 h = 1,200 min
- 21 h = 1,260 min
- 22 h = 1,320 min
- 23 h = 1,380 min
- 24 h = 1,440 min
- 25 h = 1,500 min
- 26 h = 1,560 min
- 27 h = 1,620 min
- 28 h = 1,680 min
- 29 h = 1,740 min
- 30 h = 1,800 min
- 31 h = 1,860 min
- 32 h = 1,920 min
- 33 h = 1,980 min
- 34 h = 2,040 min
- 35 h = 2,100 min
- 36 h = 2,160 min
- 37 h = 2,220 min
- 38 h = 2,280 min
- 39 h = 2,340 min
- 40 h = 2,400 min
- 41 h = 2,460 min
- 42 h = 2,520 min
- 43 h = 2,580 min
- 44 h = 2,640 min
- 45 h = 2,700 min
- 46 h = 2,760 min
- 47 h = 2,820 min
- 48 h = 2,880 min
- 49 h = 2,940 min
- 50 h = 3,000 min
- 51 h = 3,060 min
- 52 h = 3,120 min
- 53 h = 3,180 min
- 54 h = 3,240 min
- 55 h = 3,300 min
- 56 h = 3,360 min
- 57 h = 3,420 min
- 58 h = 3,480 min
- 59 h = 3,540 min
- 60 h = 3,600 min
- 61 h = 3,660 min
- 62 h = 3,720 min
- 63 h = 3,780 min
- 64 h = 3,840 min
- 65 h = 3,900 min
- 66 h = 3,960 min
- 67 h = 4,020 min
- 68 h = 4,080 min
- 69 h = 4,140 min
- 70 h = 4,200 min
- 71 h = 4,260 min
- 72 h = 4,320 min
- 73 h = 4,380 min
- 74 h = 4,440 min
- 75 h = 4,500 min
- 76 h = 4,560 min
- 77 h = 4,620 min
- 78 h = 4,680 min
- 79 h = 4,740 min
- 80 h = 4,800 min
- 81 h = 4,860 min
- 82 h = 4,920 min
- 83 h = 4,980 min
- 84 h = 5,040 min
- 85 h = 5,100 min
- 86 h = 5,160 min
- 87 h = 5,220 min
- 88 h = 5,280 min
- 89 h = 5,340 min
- 90 h = 5,400 min
- 91 h = 5,460 min
- 92 h = 5,520 min
- 93 h = 5,580 min
- 94 h = 5,640 min
- 95 h = 5,700 min
- 96 h = 5,760 min
- 97 h = 5,820 min
- 98 h = 5,880 min
- 99 h = 5,940 min
- 100 h = 6,000 min
- 125 h = 7,500 min
- 150 h = 9,000 min
- 175 h = 10,500 min
- 200 h = 12,000 min
- 225 h = 13,500 min
- 250 h = 15,000 min
- 275 h = 16,500 min
- 300 h = 18,000 min
- 325 h = 19,500 min
- 350 h = 21,000 min
- 375 h = 22,500 min
- 400 h = 24,000 min
- 425 h = 25,500 min
- 450 h = 27,000 min
- 475 h = 28,500 min
- 500 h = 30,000 min
- 550 h = 33,000 min
- 600 h = 36,000 min
- 650 h = 39,000 min
- 700 h = 42,000 min
- 750 h = 45,000 min
- 800 h = 48,000 min
- 850 h = 51,000 min
- 900 h = 54,000 min
- 950 h = 57,000 min
- 1,000 h = 60,000 min
- 1,500 h = 90,000 min
- 2,000 h = 120,000 min
- 2,500 h = 150,000 min
- 3,000 h = 180,000 min
- 3,500 h = 210,000 min
- 4,000 h = 240,000 min
- 4,500 h = 270,000 min
- 5,000 h = 300,000 min
- 5,500 h = 330,000 min
- 6,000 h = 360,000 min
- 6,500 h = 390,000 min
- 7,000 h = 420,000 min
- 7,500 h = 450,000 min
- 8,000 h = 480,000 min
- 8,500 h = 510,000 min
- 9,000 h = 540,000 min
- 9,500 h = 570,000 min
- 10,000 h = 600,000 min
The factor of 60 between hour and minute comes from the Babylonian sexagesimal system, carried on by Greek then Arabic astronomy. The International Bureau of Weights and Measures lists the hour and the minute as units accepted for use with the SI without belonging to it: only the second is a base unit. Methodology & sources.
Frequently asked questions
Why isn't 2.5 hours the same as 2 h 50?
Because an hour holds 60 minutes, not 100. The decimal part reads in sixtieths: 0.5 h is half of 60, so 30 minutes. 2.5 h therefore reads 2 h 30, or 150 minutes in total. This is the most common mistake on time sheets.
How do I read a decimal hour on a payslip?
Multiply the decimal part by 60. 7.75 h gives 0.75 × 60 = 45, so 7 h 45. Worth memorising: 0.25 for a quarter hour, 0.5 for half, 0.75 for three quarters. Other values rarely land round, 0.3 h is 18 minutes.
Is an hour always 60 minutes?
Yes, the length of the hour never varies. What varies is the number of hours in a civil day when the clocks change, where the day holds 23 or 25 hours. The minute and the hour keep their definition regardless.
How many minutes in a working week?
A 35-hour week is 2,100 minutes, a 40-hour week 2,400. This kind of figure mostly helps when budgeting time: 2,100 minutes split over 5 days gives 420 minutes a day, that is 7 hours.
Are all time zones a whole number of hours apart?
No, and that is exactly why offsets are worth counting in minutes. India sits at UTC+5:30, Nepal at UTC+5:45, the Chatham Islands at UTC+12:45, Newfoundland at UTC-3:30. Between London and Kathmandu the winter gap is 345 minutes, that is 5 h 45. Rounding such offsets to whole hours puts you three quarters of an hour out.