Days to Hours
Type a value in Days and get the result in Hours, calculated exactly.
1 Days = 24 Hours
Precision
Exact factorThis result is exact.
Slide rule
Drag to scrub · arrow keys step · Shift × 10Paper tape
ConvertThemAll
- Your conversions print here.
0 lines · kept on this device only
Formula
h = d × 24
To convert Days to Hours, multiply the value by 24.
Worked examples
- 1 d × 24 = 24 h
- 100 d × 24 = 2,400 h
- 50 d × 24 = 1,200 h
This factor is exact by definition.
Conversion table
| Days (d) | Hours (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 |
| 30 | 720 |
| 40 | 960 |
| 50 | 1,200 |
| 60 | 1,440 |
| 70 | 1,680 |
| 75 | 1,800 |
| 80 | 1,920 |
| 90 | 2,160 |
| 100 | 2,400 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Hours to Days
| Hours (h) | Days (d) |
|---|---|
| 1 | ≈ 0.04166667 |
| 2 | ≈ 0.08333333 |
| 3 | 0.125 |
| 4 | ≈ 0.1666667 |
| 5 | ≈ 0.2083333 |
| 6 | 0.25 |
| 7 | ≈ 0.2916667 |
| 8 | ≈ 0.3333333 |
| 9 | 0.375 |
| 10 | ≈ 0.4166667 |
| 15 | 0.625 |
| 20 | ≈ 0.8333333 |
| 25 | ≈ 1.041667 |
| 30 | 1.25 |
| 40 | ≈ 1.666667 |
| 50 | ≈ 2.083333 |
| 60 | 2.5 |
| 70 | ≈ 2.916667 |
| 75 | 3.125 |
| 80 | ≈ 3.333333 |
| 90 | 3.75 |
| 100 | ≈ 4.166667 |
Unit definitions
- Days d
- Exactly 24 hours, or 86 400 seconds.
- Hours h
- Exactly 60 minutes, or 3600 seconds.
Questions people ask
Days to Hours: what is the conversion factor?
One d is 24 h.
How do I convert Days to Hours?
Use the formula above. For example, 100 d = 2,400 h.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.