Convert days to hours
1 d = 24 h — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
24h
1 d = 24 h
How to convert days to hours
Multiply the number of days by 24 to get hours.
The exact factor is 24 .
Day: The mean solar day of exactly 86 400 SI seconds; the real Earth wobbles.
Day to Hour conversion table
| Days (d) | Hours (h) |
|---|---|
| 1 d | 24 |
| 2 d | 48 |
| 3 d | 72 |
| 5 d | 120 |
| 10 d | 240 |
| 20 d | 480 |
| 25 d | 600 |
| 50 d | 1200 |
| 100 d | 2400 |
| 250 d | 6000 |
| 500 d | 12 000 |
| 1000 d | 24 000 |
Hour to Day conversion table
| Hours (h) | Days (d) |
|---|---|
| 1 h | 0.041 666 667 |
| 2 h | 0.083 333 333 |
| 3 h | 0.125 |
| 5 h | 0.208 333 33 |
| 10 h | 0.416 666 67 |
| 20 h | 0.833 333 33 |
| 25 h | 1.041 666 7 |
| 50 h | 2.083 333 3 |
| 100 h | 4.166 666 7 |
| 250 h | 10.416 667 |
| 500 h | 20.833 333 |
| 1000 h | 41.666 667 |
Frequently asked
How many hours are in a day?
One day equals 24 hours (d → h). That figure is exact, not rounded.
How do you convert days to hours?
Multiply the number of days by 24 to get hours.
What is 1 h in days?
One hour is 0.04166666667 days.
What is 10 d in h?
10 d = 240 h.
What exactly is a day?
The mean solar day of exactly 86 400 SI seconds; the real Earth wobbles.