Days to hours (d to h)
Convert days to hours. For time, 1 d equals 24 h.
Converter
d to h conversion table
| Days | Hours |
|---|---|
| 1 d | 24 h |
| 2 d | 48 h |
| 5 d | 120 h |
| 10 d | 240 h |
| 25 d | 600 h |
| 50 d | 1200 h |
| 100 d | 2400 h |
| 1000 d | 24000 h |
Formula
h = d × 24
Worked example
25 d × 24 = 600 h
Popular conversion examples
Choose an example to open this converter with the value filled in. These are useful examples, not a claim about search rankings.
- 1 d to h = 24 h
- 5 d to h = 120 h
- 100 d to h = 2400 h
- 3 d to h = 72 h
- 72 h to d = 3 d
- 1000 h to d = 41.6667 d
About days and hours
Day (d)
A day is taken here as exactly 24 hours, or 86,400 seconds. It is used for calendars, project plans and durations.
Hour (h)
An hour is 60 minutes, or 3,600 seconds. It is used for work time, travel time and speeds such as km/h.
Both are units of time; the base unit used internally is s.
Notes
- A day is taken as exactly 86,400 s and a week as 7 days. Leap seconds, daylight-saving changes and calendar months/years are ignored.
- Durations cannot be negative.
d to h FAQs
How do I convert days to hours?
Multiply the number of days by 24 to get hours. For example, 25 d × 24 = 600 h.
How many hours are in one day?
1 d = 24 h and 1 h = 0.04166666667 d. To go the other way, use the hours to days converter.
How many hours are in 5 days?
5 d = 120 h, rounded to 6 significant digits. Change the value in the converter above for any other amount.
How many hours are in 7 days?
7 d = 168 h, rounded to 6 significant digits.
Is the d to h conversion exact?
Yes. The factor 24 follows directly from the unit definitions (A day is taken here as exactly 24 hours, or 86,400 seconds; an hour is 60 minutes, or 3,600 seconds), so the only rounding is in the digits you choose to display.
What is the difference between days and hours?
A day is taken here as exactly 24 hours, or 86,400 seconds. It is used for calendars, project plans and durations. An hour is 60 minutes, or 3,600 seconds. It is used for work time, travel time and speeds such as km/h.
Related converters
Reverse: Hours to days.
Browse all time converters.