Convert days to hours
Day (d) to hour (h). One day equals 24 hours.
Formula
Day to hour conversion table
| Days | Hours | Hours | Days |
|---|---|---|---|
| 1 d | 24 h | 1 h | 0.041667 d |
| 2 d | 48 h | 2 h | 0.083333 d |
| 3 d | 72 h | 3 h | 0.125 d |
| 5 d | 120 h | 5 h | 0.208333 d |
| 10 d | 240 h | 10 h | 0.416667 d |
| 20 d | 480 h | 20 h | 0.833333 d |
| 50 d | 1200 h | 50 h | 2.0833 d |
| 100 d | 2400 h | 100 h | 4.1667 d |
| 500 d | 12000 h | 500 h | 20.8333 d |
| 1000 d | 24000 h | 1000 h | 41.6667 d |
To convert days to hours, multiply the number of days by 24. One day equals 24 hours, and one hour equals 0.041667 days, so the relationship is fixed and exact. As a worked example, 10 d comes to 240 h. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a time conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common day values already worked out in hours, plus the reverse hour to day direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many hours are in a day?
One day equals 24 hours. The ratio is constant, so you can multiply any number of days by 24 to get hours.
What is the formula to convert days to hours?
Use hours = days × 24. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert hours back to days?
Go the other way by using one hour equals 0.041667 days. You can also press the swap button in the converter above to flip the direction in one click.
Is this day to hour converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.