How to convert hours to days
d = h × 0.04166666667Because one day equals 24 hours, you can also divide: d = h ÷ 24.
An hour is smaller than a day: it takes 24 hours to make one day.
Worked examples
- 1 hour1 h × 0.04166666667 = 0.04166666667 d
- 5 hours5 h × 0.04166666667 = 0.2083333333 d
- 10 hours10 h × 0.04166666667 = 0.4166666667 d
- 20 hours20 h × 0.04166666667 = 0.8333333333 d
- 100 hours100 h × 0.04166666667 = 4.166666667 d
Hours to days conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Hours (h) | Days (d) |
|---|---|
| 0.1 h | 0.0041666667 d |
| 0.25 h | 0.010416667 d |
| 0.5 h | 0.020833333 d |
| 1 h | 0.041666667 d |
| 2 h | 0.083333333 d |
| 3 h | 0.125 d |
| 4 h | 0.16666667 d |
| 5 h | 0.20833333 d |
| 6 h | 0.25 d |
| 7 h | 0.29166667 d |
| 8 h | 0.33333333 d |
| 9 h | 0.375 d |
| 10 h | 0.41666667 d |
| Hours (h) | Days (d) |
|---|---|
| 12 h | 0.5 d |
| 15 h | 0.625 d |
| 20 h | 0.83333333 d |
| 25 h | 1.0416667 d |
| 30 h | 1.25 d |
| 40 h | 1.6666667 d |
| 50 h | 2.0833333 d |
| 75 h | 3.125 d |
| 100 h | 4.1666667 d |
| 250 h | 10.416667 d |
| 500 h | 20.833333 d |
| 1,000 h | 41.666667 d |
About the units
Hour (h)
Sixty minutes, or 3,600 seconds.
Day (d)
Twenty-four hours (86,400 s) — the civil day, ignoring occasional leap seconds.
Frequently asked questions
How many days are in one hour?
There are 0.04166666667 days in one hour, and this value is exact by definition.
How do I convert hours to days?
Multiply the number of hours by 0.04166666667. For example, 10 h × 0.04166666667 = 0.4166666667 d.
How many hours are in one day?
One day equals 24 hours. That is the reverse factor, 1 ÷ 0.04166666667.
What is 10 hours in days?
10 h = 0.4166666667 d.
Is this h to d converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.