Hours to Days Converter
1 hour ≈ 0.0416666667 days
The calendar day is exactly 86,400 s here. Actual solar days vary by milliseconds, and leap seconds have occasionally been added to civil time.
1 hour equals 0.0416667 days
How to convert hours to days
A day here is a duration of 86,400 seconds. Unless explicitly labeled Julian, months and years use the mean Gregorian convention (365.2425 days per year; one twelfth per month), rather than the actual length of a particular calendar interval.
d = h × 0.04166666667One hour is 0.04166666667 days, so a single multiplication converts any value.
0.416667 d ≈ 10 × 0.04166666667The calendar day is exactly 86,400 s here. Actual solar days vary by milliseconds, and leap seconds have occasionally been added to civil time.
Hours to days conversion table
Common values in hours, converted to days.
| Hours (h) | Days (d) |
|---|---|
| 1 | 0.041666667 |
| 2 | 0.083333333 |
| 5 | 0.20833333 |
| 10 | 0.41666667 |
| 15 | 0.625 |
| 30 | 1.25 |
| 60 | 2.5 |
| 90 | 3.75 |
| 120 | 5 |
About these units
hourh
Exactly 60 minutes, or 3,600 seconds.
dayd
Exactly 24 hours, or 86,400 seconds.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.