Hours to Days Calculator
How to Convert Hours to Days
Formula:
Days = hours ÷ 24
Worked example:
24 hours ÷ 24 = 1 day
Hours to Days Conversion Table
| h | d |
|---|---|
| 1 | 0.0417 |
| 1.5 | 0.0625 |
| 2 | 0.0833 |
| 2.5 | 0.1042 |
| 3 | 0.125 |
| 4 | 0.1667 |
| 5 | 0.2083 |
| 6 | 0.25 |
| 7 | 0.2917 |
| 7.5 | 0.3125 |
| 8 | 0.3333 |
| 9 | 0.375 |
| 10 | 0.4167 |
| 12 | 0.5 |
| 15 | 0.625 |
| 18 | 0.75 |
| 20 | 0.8333 |
| 24 | 1 |
| 25 | 1.0417 |
| 30 | 1.25 |
| 36 | 1.5 |
| 40 | 1.6667 |
| 48 | 2 |
| 50 | 2.0833 |
| 60 | 2.5 |
| 70 | 2.9167 |
| 72 | 3 |
| 75 | 3.125 |
| 80 | 3.3333 |
| 90 | 3.75 |
| 96 | 4 |
| 100 | 4.1667 |
| 120 | 5 |
| 150 | 6.25 |
| 168 | 7 |
| 200 | 8.3333 |
| 250 | 10.4167 |
| 300 | 12.5 |
| 400 | 16.6667 |
| 500 | 20.8333 |
| 600 | 25 |
| 700 | 29.1667 |
| 720 | 30 |
About This Conversion
Hours to days divides by 24, and is the conversion behind project estimates, equipment runtimes and battery or shelf-life ratings quoted in hours. A 72-hour cure time is three days; a 500-hour lamp life is under 21 days of continuous use.
Watch the difference between calendar days and working days. A "40-hour" task is 1.67 calendar days at 24 hours a day, but five working days at eight hours a day. Both are correct answers to different questions, so state which day you mean before the number leaves the room.
Frequently Asked Questions
How many days is 72 hours?
72 hours is exactly 3 days.
How many days is 168 hours?
168 hours is 7 days, one full week.
How many days is 100 hours?
100 hours is about 4.17 days.
Is 40 hours five days?
Only in working days at eight hours each. In calendar time, 40 hours is 1.67 days.
Sources
Related Conversions
Converting the other way? Days to Hours
Need a different unit? Open the full time converter