How do I convert hours to days?

Multiply the hour value by 0.0416667. So x h × 0.0416667 = the equivalent in d.

How do I convert back from days to hours?

Multiply the day value by 24. For example, 1 d = 24 h.

Is the hour bigger than the day?

No. 1 hour is smaller than 1 day. It takes 24 hours to equal 1 day.

Are these conversion factors exact?

Yes. The factor of 0.0416667 is derived directly from the SI definitions of hour and day.

Hours to Days Converter

1 h = 0.0416667 d

1 hour equals 0.0416667 days. To convert hours to days, multiply the hour value by 0.0416667. For quick reference: 1 h = 0.0416667 d, 5 h = 0.208333 d, 10 h = 0.416667 d, 100 h = 4.16667 d.

From

0.0416667

FormulaDays = Hours × 0.0416667

Quick

How to convert hours to days

Take your value
Start with your value in hours.
Multiply by 0.0416667
Multiply the hour value by 0.0416667. This is the exact conversion factor from hours to days.
Read the result
The product is your value in days. For example, 5 h × 0.0416667 = 0.208333 d.

Conversion formula

The exact factor from hours to days is 0.0416667.

Days = Hours × 0.0416667

Hours to Days conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from hours to days
Hours (h)	Days (d)
1 h	0.041667 d
2 h	0.083333 d
3 h	0.125 d
4 h	0.16667 d
5 h	0.20833 d
6 h	0.25 d
7 h	0.29167 d
8 h	0.33333 d
9 h	0.375 d
10 h	0.41667 d
15 h	0.625 d
20 h	0.83333 d
25 h	1.0417 d
30 h	1.25 d
45 h	1.875 d
60 h	2.5 d
90 h	3.75 d
100 h	4.1667 d
120 h	5 d
150 h	6.25 d
180 h	7.5 d
240 h	10 d
300 h	12.5 d
360 h	15 d
450 h	18.75 d
500 h	20.833 d
600 h	25 d
750 h	31.25 d
900 h	37.5 d
1000 h	41.667 d
1200 h	50 d
1500 h	62.5 d
1800 h	75 d
2400 h	100 d
3000 h	125 d
3600 h	150 d
4500 h	187.5 d
6000 h	250 d
7200 h	300 d
9000 h	375 d
10000 h	416.67 d
18000 h	750 d
36000 h	1500 d
43200 h	1800 d
86400 h	3600 d
172800 h	7200 d
604800 h	25200 d
1000000 h	41667 d
31557600 h	1314900 d
100000000 h	4166667 d

Real-world reference

A standard workday is 8 h. A typical movie runs 1.5–2.5 h. In days, that gives you: 1 h = 0.0416667 d, 10 h = 0.416667 d, 100 h = 4.16667 d.

Frequently asked questions

How many days are in 1 hour?: 1 hour equals 0.0416667 days.
How do I convert hours to days?: Multiply the hour value by 0.0416667. So x h × 0.0416667 = the equivalent in d.
What is 5 hours in days?: 5 hours equals 0.208333 days.
What is 10 hours in days?: 10 hours equals 0.416667 days.
What is 100 hours in days?: 100 hours equals 4.16667 days.
How do I convert back from days to hours?: Multiply the day value by 24. For example, 1 d = 24 h.
Is the hour bigger than the day?: No. 1 hour is smaller than 1 day. It takes 24 hours to equal 1 day.
Are these conversion factors exact?: Yes. The factor of 0.0416667 is derived directly from the SI definitions of hour and day.

About the hour and the day

The hour

The hour (h) equals exactly 3,600 seconds, or 60 minutes. It is the standard unit for daily scheduling, employment, and short-distance travel time. Like the minute, it is accepted for use with the SI but is not strictly part of the SI system.

The day

The day (d) equals exactly 86,400 seconds, or 24 hours. This is the conventional 'civil' day used in calendars and contracts. The actual solar day (one full rotation of Earth relative to the Sun) varies slightly throughout the year; the difference is reconciled in atomic time scales using leap seconds.