Speed Converter
km/h, mph, knots and m/s.
Conversion
Feet per Second to Miles per Hour Converter
1 foot per second = 0.6818181818 mph. Enter any value to convert feet per second (ft/s) to miles per hour (mph), or use the table below for common values.
Formula
mph = ft/s × 0.6818181818
Example: 10 ft/s = 6.818181818 mph. To convert the other way, use ft/s = mph × 1.466666667.
Quick mental estimate: multiply by about 0.68.
Feet per Second to Miles per Hour conversion table
| Feet per Second (ft/s) | Miles per Hour (mph) |
|---|---|
| 1 ft/s | 0.6818181818 mph |
| 5 ft/s | 3.409090909 mph |
| 10 ft/s | 6.818181818 mph |
| 20 ft/s | 13.63636364 mph |
| 30 ft/s | 20.45454545 mph |
| 40 ft/s | 27.27272727 mph |
| 50 ft/s | 34.09090909 mph |
| 60 ft/s | 40.90909091 mph |
| 70 ft/s | 47.72727273 mph |
| 80 ft/s | 54.54545455 mph |
| 90 ft/s | 61.36363636 mph |
| 100 ft/s | 68.18181818 mph |
| 120 ft/s | 81.81818182 mph |
| 150 ft/s | 102.2727273 mph |
| 200 ft/s | 136.3636364 mph |
| 300 ft/s | 204.5454545 mph |
About feet per second and miles per hour
The foot per second is used in US engineering, ballistics and fluid flow.
Miles per hour is the road speed unit in the United States and the United Kingdom.
Other Speed conversions
Frequently asked questions
How do I convert feet per second to miles per hour?
Use the formula mph = ft/s × 0.6818181818. For example, 10 ft/s = 6.818181818 mph.
What is 1 foot per second in miles per hour?
1 ft/s = 0.6818181818 mph.
How do I convert miles per hour back to feet per second?
Use ft/s = mph × 1.466666667. 1 mph = 1.466666667 ft/s.