Hour to Day Converter (h to d)
1 hour = 0.0416667 day. A day is 24 hours.
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Result
72 h = 3 d
How to convert hour to day
A day is 24 hours. Converting days to hours is used for shipping windows, medicine schedules, service-level agreements and travel.
Formula
d = h × 0.0416667
Worked example
72 h × 0.0416667 = 3 d
Hour to Day quick-reference table
| Hour (h) | Day (d) |
|---|---|
| 6 h | 0.25 d |
| 12 h | 0.5 d |
| 24 h | 1 d |
| 48 h | 2 d |
| 72 h | 3 d |
| 168 h | 7 d |
Real-life examples
48 hours is 2 days, and 100 hours is 4.17 days.
Frequently asked questions
How many hours are in a day?
A day is 24 hours.
How many hours are in a week?
A week is 168 hours (7 x 24).
What is 1 hour in day?
1 hour = 0.0416667 day (h to d).
What is the formula to convert h to d?
d = h × 0.0416667. For example, 72 h × 0.0416667 = 3 d.
How do I convert d back to h?
Use the reverse converter: 1 day = 24 hour. Check: 3 d converts back to 72 h.
Reverse conversion
Need the other direction? Day to Hour converter (d to h): 1 day = 24 hour.
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