Days to Hours

One day is 24 hours. Durations from milliseconds to years. A year here is 365 days; leap years and calendar months are handled by the date calculators instead.

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From

To24

1 day = 24 hours · open this conversion

Formula

hours = days × 24

One year is taken as 365 days and one week as 7 days. Calendar months vary in length and are not offered here.

Days to Hours table

Days	Hours
1 d	24 h
2 d	48 h
3 d	72 h
5 d	120 h
10 d	240 h
12 d	288 h
15 d	360 h
20 d	480 h
24 d	576 h
30 d	720 h
45 d	1,080 h
48 d	1,152 h
60 d	1,440 h
72 d	1,728 h
90 d	2,160 h
100 d	2,400 h
120 d	2,880 h
168 d	4,032 h
365 d	8,760 h
1,000 d	24,000 h

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Other time conversions

⇄ Hours to Days Days to Milliseconds Days to Seconds Days to Minutes Days to Weeks Days to Years

Frequently asked questions

▸How many hours are in a day?

One day is 24 hours. hours = days × 24.

▸How do I convert days to hours?

Multiply the number of days by 24. For example, 10 d × 24 = 240 h.

▸What is the difference between days and hours?

Day (d) and Hour (h) both measure time. Durations from milliseconds to years. A year here is 365 days; leap years and calendar months are handled by the date calculators instead.

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