| foot per second | |
|---|---|
| Unit system | Imperial, United States customary units |
| Unit of | speed |
| Symbol | ft/s, fps |
| Conversions | |
| 1 ft/s, fpsin ... | ... is equal to ... |
| m/s | 0.3048 |
| mph | 0.6818 |
| kn | 0.5925 |
| km/h | 1.0973 |
Thefoot per second (pluralfeet per second) is aunit of bothspeed (scalar) andvelocity (vector quantity, which includes direction).[1] It expresses thedistance infeet (ft) traveled or displaced, divided by thetime inseconds (s).[2]
The corresponding unit in theInternational System of Units (SI) is themeter per second.
Abbreviations includeft/s,fps, and the scientific notationft s−1.[1]
| m/s | km/h | mph (mi/h) | knot | fps (ft/s) | |
|---|---|---|---|---|---|
| 1m/s = | 1 | 3.600000 | 2.236936* | 1.943844* | 3.280840* |
| 1km/h = | 0.277778* | 1 | 0.621371* | 0.539957* | 0.911344* |
| 1mph (mi/h) = | 0.44704 | 1.609344 | 1 | 0.868976* | 1.466667* |
| 1knot = | 0.514444* | 1.852 | 1.150779* | 1 | 1.687810* |
| 1fps (ft/s) = | 0.3048 | 1.09728 | 0.681818* | 0.592484* | 1 |
(* = approximate values)
