| foot per second | |
| Standard: | Imperial, United States customary units |
| Quantity: | speed |
| Symbol: | ft/s, fps |
| Units1: | m/s |
| Inunits1: | 0.3048 |
| Units2: | mph |
| Inunits2: | 0.6818 |
| Units3: | kn |
| Inunits3: | 0.5925 |
| Units4: | km/h |
| Inunits4: | 1.0973 |
The foot per second (plural feet per second) is a unit of both speed (scalar) and velocity (vector quantity, which includes direction).[1] It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s).[2] 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.[1]