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 meter per second.

foot per second
Unit systemImperial, United States customary units
Unit ofspeed
Symbolft/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

Abbreviations include ft/s, fps, and the scientific notation ft s−1.[1]

Conversions

Conversions between common units of speed
m/skm/hmph (mi/h)knotfps (ft/s)
1 m/s = 13.6000002.236936*1.943844*3.280840*
1 km/h = 0.277778*10.621371*0.539957*0.911344*
1 mph (mi/h) = 0.447041.60934410.868976*1.466667*
1 knot = 0.514444*1.8521.150779*11.687810*
1 fps (ft/s) = 0.30481.097280.681818*0.592484*1

(* = approximate values)

See also

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

References


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