Convert Days to Hours
1 day = 24 hours. Type any value below to convert in either direction — the calculation happens in your browser.
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Guide & FAQDays to Hours formula · Days to Hours conversion table · Hours to Days conversion table · About the day · About the hour · Frequently asked questions
Days to Hours formula
Multiply the number of days by 24 to get hours.
hours = days × 24To go the other way: divide the number of hours by 24, or multiply by 0.04166667.
days = hours ÷ 24Days to Hours conversion table
| Days | Hours |
|---|---|
| 1 d | 24 h |
| 2 d | 48 h |
| 3 d | 72 h |
| 4 d | 96 h |
| 5 d | 120 h |
| 6 d | 144 h |
| 7 d | 168 h |
| 8 d | 192 h |
| 9 d | 216 h |
| 10 d | 240 h |
| 15 d | 360 h |
| 20 d | 480 h |
| 25 d | 600 h |
| 30 d | 720 h |
| 40 d | 960 h |
| 50 d | 1,200 h |
| 75 d | 1,800 h |
| 100 d | 2,400 h |
| 250 d | 6,000 h |
| 500 d | 12,000 h |
| 1,000 d | 24,000 h |
Hours to Days conversion table
| Hours | Days |
|---|---|
| 1 h | 0.04166667 d |
| 2 h | 0.08333333 d |
| 3 h | 0.125 d |
| 4 h | 0.1666667 d |
| 5 h | 0.2083333 d |
| 6 h | 0.25 d |
| 7 h | 0.2916667 d |
| 8 h | 0.3333333 d |
| 9 h | 0.375 d |
| 10 h | 0.4166667 d |
About the day
A day is exactly 86,400 seconds by convention, ignoring leap seconds and slight variations in Earth’s rotation.
About the hour
An hour is 60 minutes, or 3,600 seconds — one twenty-fourth of a day.
Frequently asked questions
How many hours are in a day?
There are 24 hours in one day.
How many days are in a hour?
There are 0.04166667 days in one hour.
Is this conversion exact?
The ratio between the day and the hour is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 days in hours?
10 days equals 240 hours.
Common days to hours values
Worked answers for the values people look up most.