Days to Hours Converter
Convert days to hours instantly and accurately. 1 d = 24 h. Type any value below — the result updates as you type.
How to convert days to hours
1 d = 24 h. To convert days to hours, multiply the value by 24.
Example: 10 d × 24 = 240 h.
Going the other way, 1 h = 0.041667 d.
Days to hours conversion table
| Days (d) | Hours (h) |
|---|---|
| 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 | 1200 h |
| 75 d | 1800 h |
| 100 d | 2400 h |
| 250 d | 6000 h |
| 500 d | 12000 h |
| 1000 d | 24000 h |
Every day counts as 24 hours here
The converter treats a day as exactly 86,400 seconds, so it multiplies by 24. 3 days is 72 hours, 3.5 days is 84 hours and a quarter of a day is 6 hours.
Real local days aren't always that long. On the day clocks change for daylight saving time, the local day has 23 or 25 hours. If you're counting down to an event across a clock change, the time on the wall will be one hour off from days × 24.
Calendar days versus working days
A deadline of 3 days is 72 hours of elapsed time. Three working days of 8 hours each is only 24 hours of work. Be clear about which one you mean before converting.
- "Within 48 hours" is 2 calendar days, weekends included.
- A task estimated at 2.5 working days of 7.5 hours is 18.75 hours of effort, not 60.
- Enter calendar days here; for working time, multiply by the length of your working day instead of 24.
Weeks, months and years in hours
For a specific span, convert the number of days: 7 days is 168 hours, 14 days is 336, 30 days is 720, 90 days is 2,160 and 365 days is 8,760.
If you switch the From unit to Months or Years, the converter uses averages. A month is 30.4375 days, or 730.5 hours, and a year is 365.25 days, or 8,766 hours. Those are right on average but wrong for any single month or year, so enter the actual number of days when you know it.
From hours back to days and hours
Press the swap button and the converter divides by 24. 100 hours is 4.1667 days. For days and hours, keep the whole days and multiply the decimal by 24: 0.1667 × 24 is about 4, so 100 hours is 4 days 4 hours. 1,000 hours works the same way: 41.6667 days, or 41 days 16 hours.
How to use this tool
- 1Enter the value in days.
- 2Read the converted result in hours instantly.
- 3Use the swap button to reverse the conversion, or pick any other unit.
Frequently asked questions
How many hours are in 7 days?+
7 days is 168 hours. Two weeks is 336 hours.
How many hours is 1.5 days?+
1.5 days is 36 hours, a day and a half. Half a day on its own is 12 hours.
Does the converter account for leap years?+
Days to hours doesn't need to, because every day here is 24 hours. Only the Years unit uses an average of 365.25 days, which spreads the extra leap day across four years.
How many hours are in a month?+
It depends on the month. A 28-day February has 672 hours, a 30-day month has 720 and a 31-day month has 744. The converter's Months unit uses an average of 730.5 hours, which matches none of them exactly.
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<iframe src="https://utilityapp.lat/embed/units/days-to-hours" title="Days to Hours Converter" width="100%" height="360" style="border:0;max-width:760px" loading="lazy"></iframe> <p style="font-size:13px"><a href="https://utilityapp.lat/units/days-to-hours">Days to Hours Converter</a> by UtilityApp</p>