Day to Hour Converter
Convert days to hours with this free time converter. The exact relationship used on this page is 1 day = 24 hours. Type any number — the result updates instantly, works on phones and desktops, and is ready to copy into homework, a spec sheet, or a shopping list.
Formula: Hour = Day × 24
How to convert days to hours
- Enter the value in days in the converter.
- Read the equivalent amount in hours.
- Use the swap link if you need hour to day instead.
- Check the table for common values without typing.
Worked examples
- 1 d = 24 h
- 5 d = 120 h
- 10 d = 240 h
- 25 d = 600 h
Conversion table
Common days values converted to hours.
| d | h |
|---|---|
| 1 | 24 |
| 2 | 48 |
| 3 | 72 |
| 4 | 96 |
| 5 | 120 |
| 6 | 144 |
| 7 | 168 |
| 8 | 192 |
| 9 | 216 |
| 10 | 240 |
| 20 | 480 |
| 50 | 1,200 |
| 100 | 2,400 |
| 250 | 6,000 |
| 500 | 12,000 |
| 1,000 | 24,000 |
About this conversion
Day (d) and Hour (h) are both time units. Time converters turn seconds into hours, hours into days, and days into years using standard mean values (365. Bookmark this URL when you convert days to hours often, then explore related pairs in the same category if you need a different target unit.
Need the other direction? Open the hour to day converter.
FAQ
How many hours are in 1 day?+
1 day equals 24 hours.
What is the formula to convert days to hours?+
Hour = Day × 24
How do I convert days to hours by hand?+
Multiply the day value by 24. Example: 10 days × 24 = 240 hours.
Is this d to h converter accurate?+
Yes. Linear conversions use internationally agreed factors relative to SI. Temperature and inverse fuel units use the standard offset or reciprocal formulas, not a guessed scale factor.