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Speed Conversions

Here are a few of the most often needed conversion factors for speed. Speed, technically, is the scalar form of velocity, in that velocity (a vector) also provides direction of motion along with the value of speed.












Standard units = Meters per second (m/s)

foot per sec mile per hr cm per sec meter per sec km per hr knot
1 ft/s = 1 0.6818 30.48 0.3048 1.097 0.5925
1 mi/h = 1.467 1 44.70 0.4470 1.609 0.8689
1 cm/s = 3.281 * 10-2 2.237 * 10-2 1 0.01 3.600 * 10-2 1.944 * 10-2
1 m/s = 3.281 2.237 100 1 3.600 1.944
1 km/h = 0.9113 0.6214 27.78 0.2778 1 0.5400
1 knot = 1.688 1.151 51.44 0.5144 1.852 1