Convert Hours to Days
One hour equals 0.0416667 days. Type any value to convert hours to days instantly — with a full reference table below.
Convert Hours to Days
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How to convert Hours to Days
To convert hours to days, multiply by 0.0416667. One hour equals 0.0416667 d, and one day equals 24 hr.
- Take the value in hours — for example 7.5 hr.
- Multiply by 0.0416667 (the number of days in one hour).
- 7.5 × 0.0416667 = 0.3125 d.
Quick mental estimate: Divide the number of hours by 24 — that is exact.
Hours to Days conversion table
| Hours | Days |
|---|---|
| 1 hr | 0.0416667 d |
| 2 hr | 0.0833333 d |
| 3 hr | 0.125 d |
| 5 hr | 0.208333 d |
| 10 hr | 0.416667 d |
| 15 hr | 0.625 d |
| 20 hr | 0.833333 d |
| 30 hr | 1.25 d |
| 45 hr | 1.875 d |
| 60 hr | 2.5 d |
| 90 hr | 3.75 d |
| 120 hr | 5 d |
| 365 hr | 15.20833 d |
| Days | Hours |
|---|---|
| 1 d | 24 hr |
| 2 d | 48 hr |
| 3 d | 72 hr |
| 5 d | 120 hr |
| 10 d | 240 hr |
| 15 d | 360 hr |
| 20 d | 480 hr |
| 30 d | 720 hr |
| 45 d | 1,080 hr |
| 60 d | 1,440 hr |
| 90 d | 2,160 hr |
| 120 d | 2,880 hr |
| 365 d | 8,760 hr |
About converting Hours to Days
Hours (hr) and Days (d) are both units of time. The exact factor is 1 hr = 0.0416667 d, so multiply by 0.0416667 to go from hours to days (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Days to Hours converter, or the full unit converter for every unit at once.
Real-world time in hours and days
| Example | Hours | Days |
|---|---|---|
| A typical work day (8 h) | 8 hr | 0.333333 d |
| A full-time work year (2,080 h) | 2,080 hr | 86.66667 d |
| A common year (365 days) | 8,760 hr | 365 d |
| A leap year (366 days) | 8,784 hr | 366 d |
“≈” marks typical values; the rest are defined or measured figures.
The units
60 minutes, 3,600 seconds.
Used for: Work, travel and billing.
24 hours, 86,400 seconds (ignoring rare leap seconds).
Used for: Calendars and deadlines.
Seconds, minutes, hours, days and weeks are exact. Months and years are averages of the Gregorian calendar (a year of 365.2425 days, a month of 30.436875 days), because real months and years vary in length.