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]

foot per second
Unit system	Imperial, United States customary units
Unit of	speed
Symbol	ft/s, fps
Conversions
1 ft/s, fps in ...	... is equal to ...
m/s	0.3048
mph	0.6818
kn	0.5925
km/h	1.0973

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]

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