How to convert hours to days
One hour equals 0.041667 days. To convert, multiply the number of hours by 0.041667 (or divide by 24):
Mental-math shortcut: Divide hours by 24: 72 h = 3 days.
Example
Convert 72 hours to days: 72 h × 0.041667 = 3 d.
Hours to Days conversion chart
| Hours (h) | Days (d) |
|---|---|
| 1 | 0.041667 |
| 6 | 0.25 |
| 12 | 0.5 |
| 24 | 1 |
| 36 | 1.5 |
| 48 | 2 |
| 72 | 3 |
| 96 | 4 |
| 100 | 4.1667 |
| 120 | 5 |
| 168 | 7 |
| 200 | 8.3333 |
| 240 | 10 |
| 500 | 20.8333 |
| 720 | 30 |
| 1,000 | 41.6667 |
What is an hour?
An hour (h or hr) is 60 minutes, or 3,600 seconds. A day has 24 hours and a standard full-time work week in the US is 40 hours. To write hours and minutes as a decimal, divide the minutes by 60: 7 h 45 min = 7.75 h.
What is a day?
A day is 24 hours, or 86,400 seconds — the time Earth takes to spin once relative to the Sun. A week has 7 days, and a year has 365 days (366 in a leap year).
Frequently asked questions
How many days is one hour?
One hour is 0.041667 days.
How do I convert hours to days?
Multiply the value in hours by 0.041667. For example, 72 h × 0.041667 = 3 d.
What is 100 h in days?
100 h is 4.1667 days.
How do I convert days to hours?
Multiply days by 24 (or divide by 0.041667).
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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