Skip to content
Engyna

Convert days to hours

Convert days (d) to hours (h). 1 d = 24 h, and 1 h = 0.0416667 d.

1 d = 24 h

Days to Hours formula

h = d × 24

Multiply the number of days by 24.

Example: To convert 1 d to hours: 1 × 24 = 24 h.

Quick answers

What is 1 d in hours?
1 d = 24 h
What is 7 d in hours?
7 d = 168 h
What is 30 d in hours?
30 d = 720 h
What is 90 d in hours?
90 d = 2,160 h
What is 365 d in hours?
365 d = 8,760 h

Days to Hours conversion table

Hours to Days table
days (d)hours (h)
1 d24 h
2 d48 h
3 d72 h
5 d120 h
7 d168 h
10 d240 h
14 d336 h
21 d504 h
28 d672 h
30 d720 h
31 d744 h
45 d1,080 h
60 d1,440 h
90 d2,160 h
100 d2,400 h
180 d4,320 h
365 d8,760 h
366 d8,784 h
1,000 d24,000 h

Frequently asked questions

How many hours are in a day?

There are 24 hours in a day (1 d = 24 h).

How do I convert days to hours?

Multiply the number of days by 24. To convert 1 d to hours: 1 × 24 = 24 h.

Is the Days to Hours conversion exact?

Yes. Both units are defined exactly, so 1 day is exactly 24 hours. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 d in hours?

1 d = 24 h.

How do I convert hours back to days?

Use the reverse relationship: 1 h = 0.0416667 d. The Hours to Days page has a converter and a full table.

More time conversions

All unit conversions