Days to Hours Converter
Convert days (d) to hours (h) instantly. Type a value above and the result updates while you type. 1 day equals 24 hours.
Result
h
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 day = 24 hours
Multiply the days value by 24 to get hours. Or divide by 0.041667 to go the other way.
Days to hours conversion table
| d | h |
|---|---|
| 1 | 24 |
| 2 | 48 |
| 3 | 72 |
| 4 | 96 |
| 5 | 120 |
| 6 | 144 |
| 7 | 168 |
| 8 | 192 |
| 9 | 216 |
| 10 | 240 |
| 15 | 360 |
| 20 | 480 |
| 25 | 600 |
| 50 | 1200 |
| 75 | 1800 |
| 100 | 2400 |
Worked examples
- 5 d × 24 = 120 h
- 30 d × 24 = 720 h
- 165 d × 24 = 3960 h
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
Looking for the other direction?
Frequently asked questions
How many hours are in 1 day?
1 day equals 24 hours (d → h).
How do you convert days to hours?
Multiply the number of days by 24. For example: 10 d × 24 = 240 h.
What is 50 d in h?
50 d equals 1200 h.
Which is bigger: 1 day or 1 hour?
1 day is bigger: it equals 24 hours.