13.9 mph ≈ 20.3867 ftps. To convert miles per hour to feet per second, multiply by 1.4666679: 13.9 × 1.4666679 = 20.3867.
How to convert miles per hour to feet per second
ftps = mph × 1.4666679
- 1 mph = 1.4666679 ftps (and 1 ftps = 0.68181759 mph).
- Multiply the amount by the factor: 13.9 × 1.4666679 = 20.3867.
- Answer: 13.9 mph ≈ 20.3867 ftps (rounded to 6 significant figures).
Miles Per Hour to Feet Per Second table
| Miles Per Hour (mph) | Feet Per Second (ftps) |
|---|---|
| 13.4 mph | 19.6534 ftps |
| 13.5 mph | 19.8 ftps |
| 13.6 mph | 19.9467 ftps |
| 13.7 mph | 20.0934 ftps |
| 13.8 mph | 20.24 ftps |
| 13.9 mph | 20.3867 ftps |
| 14 mph | 20.5334 ftps |
| 14.1 mph | 20.68 ftps |
| 14.2 mph | 20.8267 ftps |
| 14.3 mph | 20.9734 ftps |
| 14.4 mph | 21.12 ftps |
| mph | ftps |
|---|---|
| 1 mph | 1.4667 ftps |
| 5 mph | 7.3333 ftps |
| 10 mph | 14.6667 ftps |
| 50 mph | 73.3334 ftps |
| 100 mph | 146.667 ftps |
| 1,000 mph | 1,466.67 ftps |