Velocity
mphtoft/s
Convert miles per hour (mph) to feet per second (ft/s).
Factor1 mph = 1.466667 ft/s
Converter
mph
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ft/s
Rendered to 6 significant figures.
Formula
Formula
ft/s = mph × 1.466667
Multiply any value in miles per hour by 1.466667 to obtain the value in feet per second.
Worked example
Convert 60 mph to ft/s.
- 01Start with 60 mph.
- 02Multiply by the conversion factor: 60 × 1.466667 = 88 ft/s.
Result60 mph = 88 ft/s
Conversion table
| mph | ft/s |
|---|---|
| 1 | 1.4667 |
| 2 | 2.9333 |
| 5 | 7.3333 |
| 10 | 14.667 |
| 20 | 29.333 |
| 50 | 73.333 |
| 100 | 146.67 |
| 200 | 293.33 |
| 500 | 733.33 |
| 1000 | 1466.7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mph to ft/s?
1 mph equals 1.466667 ft/s. To convert, multiply the value in miles per hour by 1.466667.
How do I convert 1 mph to ft/s?
1 mph = 1.46667 ft/s. For any value, multiply by 1.466667.
How do I convert ft/s back to mph?
Divide by the same factor — or equivalently, multiply by 0.6818182. So 1 ft/s = 0.681818 mph.
When would I need to convert mile per hour to foot per second?
Velocity conversions are needed for fluid flow analysis (line velocity targets, erosional limits), gas-stream calculations, and equipment specs that mix m/s, ft/s and engineering speed units.
Is the conversion exact?
Yes. Both mph and ft/s are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).