Miles per hour to Feet per second
Type a value in Miles per hour and get the result in Feet per second, calculated exactly.
100 Miles per hour ≈ 146.6666667 Feet per second
Precision
Exact factorRounded for display to about 10 significant digits.
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Formula
ft/s = mph × 1.46666666667
To convert Miles per hour to Feet per second, multiply the value by 1.46666666667.
Worked examples
- 1 mph × 1.46666666667 ≈ 1.466666667 ft/s
- 100 mph × 1.46666666667 ≈ 146.6666667 ft/s
- 50 mph × 1.46666666667 ≈ 73.33333333 ft/s
This factor is exact by definition.
Conversion table
| Miles per hour (mph) | Feet per second (ft/s) |
|---|---|
| 1 | ≈ 1.466667 |
| 2 | ≈ 2.933333 |
| 3 | 4.4 |
| 4 | ≈ 5.866667 |
| 5 | ≈ 7.333333 |
| 6 | 8.8 |
| 7 | ≈ 10.26667 |
| 8 | ≈ 11.73333 |
| 9 | 13.2 |
| 10 | ≈ 14.66667 |
| 15 | 22 |
| 20 | ≈ 29.33333 |
| 25 | ≈ 36.66667 |
| 30 | 44 |
| 40 | ≈ 58.66667 |
| 50 | ≈ 73.33333 |
| 60 | 88 |
| 70 | ≈ 102.6667 |
| 75 | 110 |
| 80 | ≈ 117.3333 |
| 90 | 132 |
| 100 | ≈ 146.6667 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Feet per second to Miles per hour
| Feet per second (ft/s) | Miles per hour (mph) |
|---|---|
| 1 | ≈ 0.6818182 |
| 2 | ≈ 1.363636 |
| 3 | ≈ 2.045455 |
| 4 | ≈ 2.727273 |
| 5 | ≈ 3.409091 |
| 6 | ≈ 4.090909 |
| 7 | ≈ 4.772727 |
| 8 | ≈ 5.454545 |
| 9 | ≈ 6.136364 |
| 10 | ≈ 6.818182 |
| 15 | ≈ 10.22727 |
| 20 | ≈ 13.63636 |
| 25 | ≈ 17.04545 |
| 30 | ≈ 20.45455 |
| 40 | ≈ 27.27273 |
| 50 | ≈ 34.09091 |
| 60 | ≈ 40.90909 |
| 70 | ≈ 47.72727 |
| 75 | ≈ 51.13636 |
| 80 | ≈ 54.54545 |
| 90 | ≈ 61.36364 |
| 100 | ≈ 68.18182 |
Unit definitions
- Miles per hour mph
- One mile per hour: exactly 0.44704 metres per second.
- Feet per second ft/s
- Exactly 0.3048 metres per second.
Questions people ask
Miles per hour to Feet per second: what is the conversion factor?
One mph is ≈ 1.466666667 ft/s.
How do I convert Miles per hour to Feet per second?
Use the formula above. For example, 100 mph = ≈ 146.6666667 ft/s.
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.