Foot Per Second
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Foot Per Second

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]


m/s km/h mph knot ft/s
1 m/s = 1 3.600000 2.236936* 1.943844* 3.280840*
1 km/h = * 1 * * *
1 mph = 1 * *
1 knot = * 1.852 * 1 *
1 ft/s = * * 1

(* = approximate values)

See also


  1. ^ a b "What is foot per second (ft/s or ft/sec)? - Definition from".
  2. ^ "What is a speed unit foot per second (ft/sec)?". Aqua-Calc. Retrieved .

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