Online Tools HarborDay to hour formula
h = d × 24 · 1 day = 24 hours
d to h conversion table
| days (d) | hours (h) |
|---|---|
| 1 d | 24 h |
| 2 d | 48 h |
| 3 d | 72 h |
| 7 d | 168 h |
| 14 d | 336 h |
| 30 d | 720 h |
Need the opposite? Use the hours to days converter.
How to use the Days to Hours converter
- Enter the value you want to convert.
- Pick the units to convert from and to (or click ⇄ to swap).
- Read the result instantly, with the formula and a full table below.
About this tool
Convert days to hours instantly, with the formula and a d to h conversion table. It is part of the free Converters collection on Online Tools Harbor. Everything happens locally in your browser, so it is fast and private.
Frequently asked questions
How do I convert days to hours?
Use the formula h = d × 24. For example, 3 d = 72 h.
How many hours are in 1 day?
1 day = 24 hours. To convert, multiply the value in days by 24.
Is the Days to Hours free?
Yes. The Days to Hours is completely free to use, with no sign-up and no limits on normal use.
Is my data safe?
Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.
Does it work on mobile?
Yes, it works in any modern browser on phones, tablets and computers. No app to install.
More time conversions
Hours to Minutes · Minutes to Hours · Seconds to Minutes · Hours to Seconds · Days to Minutes · Weeks to Days · Years to Days · Minutes to Seconds · Hours to Days · Days to Weeks