550 ftps ≈ 375 mph. To convert feet per second to miles per hour, multiply by 0.68181759: 550 × 0.68181759 = 375.
How to convert feet per second to miles per hour
mph = ftps × 0.68181759
- 1 ftps = 0.68181759 mph (and 1 mph = 1.4666679 ftps).
- Multiply the amount by the factor: 550 × 0.68181759 = 375.
- Answer: 550 ftps ≈ 375 mph (rounded to 6 significant figures).
Feet Per Second to Miles Per Hour table
| Feet Per Second (ftps) | Miles Per Hour (mph) |
|---|---|
| 545 ftps | 371.591 mph |
| 546 ftps | 372.272 mph |
| 547 ftps | 372.954 mph |
| 548 ftps | 373.636 mph |
| 549 ftps | 374.318 mph |
| 550 ftps | 375 mph |
| 551 ftps | 375.681 mph |
| 552 ftps | 376.363 mph |
| 553 ftps | 377.045 mph |
| 554 ftps | 377.727 mph |
| 555 ftps | 378.409 mph |
| ftps | mph |
|---|---|
| 1 ftps | 0.681818 mph |
| 5 ftps | 3.4091 mph |
| 10 ftps | 6.8182 mph |
| 50 ftps | 34.0909 mph |
| 100 ftps | 68.1818 mph |
| 1,000 ftps | 681.818 mph |