The foot per second (plural feet per second) is a unit of both speed (scalar) and velocity (vector quantity, which includes direction). It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s). The corresponding unit in the International System of Units (SI) is the meter per second.
Abbreviations include ft/s, fps, and the scientific notation ft s−1.
Conversions
Conversions between common units of speed| m/s | km/h | mph (mi/h) | knot | fps (ft/s) | |
|---|---|---|---|---|---|
| 1 m/s = | 1 | 3.600000 | 2.236936* | 1.943844* | 3.280840* |
| 1 km/h = | 0.277778* | 1 | 0.621371* | 0.539957* | 0.911344* |
| 1 mph (mi/h) = | 0.44704 | 1.609344 | 1 | 0.868976* | 1.466667* |
| 1 knot = | 0.514444* | 1.852 | 1.150779* | 1 | 1.687810* |
| 1 fps (ft/s) = | 0.3048 | 1.09728 | 0.681818* | 0.592484* | 1 |
(* = approximate values)
See also
- Foot per second squared, a corresponding unit of acceleration.
- Feet per minute
References
"What is foot per second (ft/s or ft/sec)? - Definition from WhatIs.com". WhatIs.com. http://whatis.techtarget.com/definition/foot-per-second-ft-s-or-ft-sec ↩
"What is a speed unit foot per second (ft/sec)?". Aqua-Calc. Retrieved 2018-06-02. https://www.aqua-calc.com/what-is/speed/foot-per-second ↩
"What is foot per second (ft/s or ft/sec)? - Definition from WhatIs.com". WhatIs.com. http://whatis.techtarget.com/definition/foot-per-second-ft-s-or-ft-sec ↩