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Hour to Day Converter

1 hour is about 0.04166666667 days. Convert hours (h) to days (d) below: type a value and the result updates as you type.

h to d calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

Hour to Day conversion

1 h ≈ 0.04166666667 done hour in days

1 d = 24 hone day in hours

Hour (h): Exactly 3600 seconds.

Day (d): Exactly 86 400 seconds (24 hours). Leap seconds are not considered.

Source:SI Brochure, 9th edition (BIPM, 2019)

How to convert hours to days

To convert hours to days, divide the number of hours by 24.

Formula

d = h ÷ 24

Examples

  • 5 h = 5 ÷ 24 ≈ 0.2083333333 d
  • 25 h = 25 ÷ 24 ≈ 1.041666667 d
  • 100 h = 100 ÷ 24 ≈ 4.166666667 d

Hour to Day conversion table

Hour to Day
Hour (h)Day (d)
0.1 h0.004166666667 d
0.5 h0.02083333333 d
1 h0.04166666667 d
2 h0.08333333333 d
3 h0.125 d
5 h0.2083333333 d
10 h0.4166666667 d
20 h0.8333333333 d
25 h1.041666667 d
50 h2.083333333 d
100 h4.166666667 d
250 h10.41666667 d
500 h20.83333333 d
1000 h41.66666667 d

Values rounded to 10 significant digits where needed.

Frequently asked questions

How many days are in one hour?
One hour is about 0.04166666667 days.
How do I convert days to hours?
To convert days to hours, multiply the number of days by 24. The formula is h = d × 24.
Is this conversion exact?
Yes. Both units have exact definitions and the factor 24 is exact. Displayed results are only rounded when they have many decimal places.
Which is larger, a hour or a day?
A day is 24 times larger than a hour. In other words, a hour is exactly 1/24 of a day.