Convert hours to days
Converting hours to days is a common time task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 h equals 0.0416667 d, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert hours to days
To convert hours to days, multiply the number of hours by 0.0416667. For example, 10 h × 0.0416667 = 0.416667 d.
d = h × 0.0416667
- Write down the value in hours you want to convert.
- Multiply it by 0.0416667 (the exact h→d factor).
- The result is your value in days. Check it below with the converter or the table.
Conversion table
Common values of hours and their equivalents in days:
| h | d |
|---|---|
| 1 | 0.0416667 |
| 2 | 0.0833333 |
| 3 | 0.125 |
| 4 | 0.166667 |
| 5 | 0.208333 |
| 10 | 0.416667 |
| 20 | 0.833333 |
| 25 | 1.04167 |
| 50 | 2.08333 |
| 100 | 4.16667 |
| 250 | 10.4167 |
| 500 | 20.8333 |
About these units
Hour (h). An hour equals 60 minutes or 3,600 seconds, dividing the day into 24 parts. Work schedules, travel times and billing are commonly expressed in hours.
Day (d). A day equals 24 hours or 86,400 seconds, approximating one rotation of the Earth. Calendars, deadlines and project plans are built on days.
Frequently asked questions
How do I convert hours to days?
To convert hours to days, multiply the number of hours by 0.0416667. For example, 10 h × 0.0416667 = 0.416667 d. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many days are in 1 hour?
1 h = 0.0416667 d. That is the fixed relationship used by this converter and by international standards.
How many hours are in 1 day?
1 d = 24 h. If you are converting in the opposite direction, use our Day to Hour converter for the dedicated table and FAQ.
Is the hours to days conversion exact?
Yes. Both units are defined by international agreement, so the factor of 0.0416667 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is hour used for?
An hour equals 60 minutes or 3,600 seconds, dividing the day into 24 parts. Work schedules, travel times and billing are commonly expressed in hours.