Convert miles per hour to feet per second
Enter a value in miles per hour (mph) to get feet per second (ft/s). One mile per hour is 1.4667 feet per second; one foot per second is 0.681818 miles per hour.
How to use the Mile per hour to foot per second
- Type the number of miles per hour.
- Click Convert.
- Read the result in feet per second, plus the same value in every other speed unit.
mph to ft/s formula
feet per second = miles per hour × 1.4667. To go the other way, miles per hour = feet per second × 0.681818 (see feet per second to miles per hour).
Worked example
12 mph × 1.4667 = 17.6 ft/s.
Miles per hour to feet per second conversion table
| Miles per hour | Feet per second |
|---|---|
| 0.1 mph | 0.146667 ft/s |
| 0.5 mph | 0.733333 ft/s |
| 1 mph | 1.4667 ft/s |
| 2 mph | 2.9333 ft/s |
| 3 mph | 4.4 ft/s |
| 5 mph | 7.3333 ft/s |
| 10 mph | 14.6667 ft/s |
| 20 mph | 29.3333 ft/s |
| 25 mph | 36.6667 ft/s |
| 50 mph | 73.3333 ft/s |
| 100 mph | 146.6667 ft/s |
| 250 mph | 366.6667 ft/s |
| 500 mph | 733.3333 ft/s |
| 1,000 mph | 1,466.67 ft/s |
About the mile per hour
Road speed limits in the USA and UK; exactly 1.609344 km/h.
About the foot per second
Used in US engineering and ballistics.
Related conversions
feet per second to miles per hour · miles per hour to kilometres per hour · miles per hour to knots · any unit.
Frequently asked questions
How many feet per second in a mile per hour?
1.4667 feet per second.
How many miles per hour in a foot per second?
0.681818 miles per hour.
Is the factor exact?
The factor 1.4667 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.