Hours to Days Converter
24 hours = 1 day. Divide hours by 24 to convert to days. Example: 72 hours ÷ 24 = 3 days.
Formula
Formula
days = hours ÷ 24
Worked example
To convert 100 hours to days: 100 ÷ 24 = 4.167 days (4 days 4 hours).
Quick reference table
| hr | d |
|---|---|
| 1 | 0.041667 |
| 6 | 0.25 |
| 12 | 0.5 |
| 24 | 1 |
| 36 | 1.5 |
| 48 | 2 |
| 72 | 3 |
| 96 | 4 |
| 120 | 5 |
| 168 | 7 |
Unit definitions
Hour (hr)
The hour (hr) equals 60 minutes or 3,600 seconds. Standard for daily scheduling and time measurement.
Day (d)
The day (d) equals 24 hours or 86,400 seconds. Based on Earth's rotation period.
Common use cases
- Long-duration event planning
- Project deadlines
- Travel and flight durations
- Rental and lease periods