Convert speed and velocity between km/h, mph, m/s, ft/s, knots, and Mach. Free online speed conversion calculator.
Kilometers per hour
100 km/h
Miles per hour
62.14 mph
Meters per second
27.78 m/s
Feet per second
91.13 ft/s
Knots
54 kn
Mach (speed of sound)
0.08 Mach
Walking Speed
5 km/h / 3.1 mph
City Speed Limit
50 km/h / 31 mph
Highway Speed
120 km/h / 75 mph
Speed of Sound
1235 km/h / Mach 1
Convert speed and velocity between different units including km/h, mph, m/s, knots, and Mach. Free online speed conversion tool.
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