How to convert miles per hour to feet per second
To convert miles per hour to feet per second, multiply by 1.46666666667. Speed conversions are used for driving, aviation, sailing, sports and physics problems.
Mile per Hour to Foot per Second conversion table
| Mile per Hour (mph) | Foot per Second (ft/s) |
|---|---|
| 0.1 mph | 0.146666666667 ft/s |
| 0.5 mph | 0.733333333333 ft/s |
| 1 mph | 1.46666666667 ft/s |
| 2 mph | 2.93333333333 ft/s |
| 3 mph | 4.4 ft/s |
| 4 mph | 5.86666666667 ft/s |
| 5 mph | 7.33333333333 ft/s |
| 10 mph | 14.6666666667 ft/s |
| 20 mph | 29.3333333333 ft/s |
| 25 mph | 36.6666666667 ft/s |
| 50 mph | 73.3333333333 ft/s |
| 100 mph | 146.666666667 ft/s |
| 500 mph | 733.333333333 ft/s |
| 1,000 mph | 1,466.66666667 ft/s |
About the units
Mile per Hour (mph)
Miles per hour is the road speed unit in the US and UK; 1 mph is exactly 0.44704 m/s.
Foot per Second (ft/s)
Feet per second is used for projectile, fluid-flow and ballistics speeds in US engineering.
How to use this converter
- Type the number of miles per hour (mph) in the input box.
- The result in feet per second appears instantly — no button needed.
- See the same value in every other speed unit just below.
- Use “Swap units” to convert feet per second back to miles per hour.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many feet per second are in one mile per hour?
One mile per hour equals 1.46666666667 feet per second. 1.46666666667 is the exact factor used by this converter.
How do I convert miles per hour to feet per second?
Multiply the value in miles per hour by 1.46666666667. To go the other way, multiply feet per second by 0.681818181818.
What is 10 mph in ft/s?
10 mph = 14.6666666667 ft/s. Also, 5 mph = 7.33333333333 ft/s and 100 mph = 146.666666667 ft/s.
What is the difference between a mile per hour and a foot per second?
Miles per hour is the road speed unit in the US and UK; 1 mph is exactly 0.44704 m/s. Feet per second is used for projectile, fluid-flow and ballistics speeds in US engineering.
Is this tool free and private?
Yes — the Mile per Hour to Foot per Second is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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