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 metre per second.

Abbreviations include **ft/s**, **fps**, and the scientific notation **ft s ^{−1}**.

^{[1]}

## Conversions[edit]

m/s | km/h | mph | knot | ft/s | |
---|---|---|---|---|---|

1 m/s = | 1 | 3.6 | 2.236936 | 1.943844 | 3.280840 |

1 km/h = | 0.277778 | 1 | 0.621371 | 0.539957 | 0.911344 |

1 mph = | 0.44704 | 1.609344 | 1 | 0.868976 | 1.466667 |

1 knot = | 0.514444 | 1.852 | 1.150779 | 1 | 1.687810 |

1 ft/s = | 0.3048 | 1.09728 | 0.681818 | 0.592484 | 1 |

(Values in **bold face** are exact.)

## See also[edit]

- Foot per second squared, a corresponding unit of acceleration.
- Feet per minute

## References[edit]

- ^
^{a}^{b}"What is foot per second (ft/s or ft/sec)? - Definition from WhatIs.com".*WhatIs.com*. **^**"What is a speed unit foot per second (ft/sec)?". Aqua-Calc. Retrieved 2018-06-02.

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