Convert Hours to Days
1 hour is 0.041667 d. One hour is exactly 0.0416666666667 days.
One hour is 0.041666667 days. To convert hours to days, multiply by 0.041666667; to go the other way, divide by 0.041666667 or multiply by 24. The factor is exact rather than rounded: it follows from BIPM SI Brochure. Sixty minutes, and exactly 3,600 seconds.
Factor checked against the defining standard · How we check
Days
0.041667 d
- Hours × 0.041666667
value * 0.04166666666670.042 d
1 hour in every time unit
| Unit | Value | Exact factor |
|---|---|---|
| seconds | 3,600 s | × 3,600 |
| minutes | 60 min | × 60 |
| hours (as entered) | 1 h | — |
| days | 0.04166666667 d | × 0.0416666666667 |
| weeks | 0.005952380952 wk | × 0.00595238095238 |
| months | 0.001368953503 mo | × 0.00136895350349 |
| years | 0.0001140794586 yr | × 0.000114079458625 |
Factors are entered by hand from BIPM SI Brochure rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert hours to days?
- 1.Take the measurement in hours.
- 2.Multiply by 0.041666667 — that is how many days fit in one hour.
- 3.To go back the other way, divide by 0.041666667, or multiply by 24.
Hours to days conversion table
| Hours | Days |
|---|---|
| 1 h | 0.041667 d |
| 2 h | 0.083333 d |
| 3 h | 0.125 d |
| 4 h | 0.166667 d |
| 5 h | 0.208333 d |
| 6 h | 0.25 d |
| 7 h | 0.291667 d |
| 8 h | 0.333333 d |
| 9 h | 0.375 d |
| 10 h | 0.416667 d |
| 12 h | 0.5 d |
| 15 h | 0.625 d |
| 20 h | 0.833333 d |
| 25 h | 1.041667 d |
| 50 h | 2.083333 d |
| 100 h | 4.166667 d |
What are hours and days?
- Hour (h)
- Sixty minutes, and exactly 3,600 seconds.
- Day (d)
- Exactly 86,400 seconds by convention. A solar day runs a few milliseconds long or short, which is what a leap second corrects.
Source: BIPM SI Brochure — the second, and units accepted for use with the SI
Questions people actually ask
- How many days are in a hour?
- 0.041666667. Exactly 86,400 seconds by convention. A solar day runs a few milliseconds long or short, which is what a leap second corrects.
- How do I convert days back to hours?
- Divide by 0.041666667, or multiply by 24 — they are the same operation.
Other time conversions
Days to hours — the same conversion the other way.