Speed UnitsOnline metric Speed Units measurement converter.

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Converting Speed Units
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Popular Units

 Unit Symbol Definition Conversion to SI units foot per hour fph = 1 ft/h ~ 8.466 667 x 10-5 m/s foot per minute fpm = 1 ft/min = 5.08 x 10-3 m/s foot per second fps = 1 ft/s = 3.048 x 10-1 m/s furlong per fortnight = furlong/fortnight ~ 1.663 095 x 10-4 m/s inch per minute ipm = 1 in/min ~ 4.23 333 x 10-4 m/s inch per second ips = 1 in/s = 2.54 x 10-2 m/s kilometre per hour km/h = 1 km/h ~ 2.777 778 x 10-1 m/s knot kn = 1 NM/h = 1.852 km/h ~ 0.514 444 m/s knot (Admiralty) kn = 1 NM (Adm)/h = 1.853 184 km/h = 0.514 773 m/s mach number M Ratio of the speed to the speed of sound in the medium. Varies especially with temperature. About 761 mph (1225 kph) in air at sea level to about 660 mph (1062 kph) at jet altitudes. Unitless ~ 340 to 295 m/s for aircraft metre per second (SI unit) m/s = 1 m/s = 1 m/s mile per hour mph = 1 mi/h = 0.447 04 m/s mile per minute mpm = 1 mi/min = 26.8224 m/s mile per second mps = 1 mi/s = 1 609.344 m/s speed of light in vacuum c = 299 792 458 m/s = 299 792 458 m/s speed of sound in air s Varies especially with temperature. About 761 mph (1225 kph) in air at sea level to about 660 mph (1062 kph) at jet altitudes. ~ 340 to 295 m/s at aircraft altitudes
source: wikipedia

Convert From and To Units

 • Centimeter/Second (Symbol: cm/sec) • Feet/Second (Symbol: ft/sec) • Kilometer/Hour (Symbol: km/h, kmph) • Kilometer/Minute (Symbol: km/min) • Kilometer/Second (Symbol: km/sec) • Knot (Symbol: kn) • Mach (Symbol: M) • Meter/Minute • Meter/Second (Symbol: m/sec) • Mile/Hour (Symbol: mph) • Speed of Light • Speed of Sound • Yard/Second (Symbol: yd/sec)
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