Speed calculator

Online converter of speed units

Converting from one to other speed units

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In kinematics, speed is a scalar quantity, because the speed of an object is the designation of the movement (the rate of change of its position). The Italian physicist Galileo Galilei defined speed as the distance covered per unit of time. In the International System of Units the speed is measured in meters per second. But in everyday life, the more commonly used unit of speed is kilometer per hour and miles per hour in the US and the UK. The knot is typically used in air and sea travel.



Calculator of speed units

To convert from
To convert to
km/h
=
mph
The basic units of speed
Foot per minuteft/min
Foot per secondft/sec
Kilometer per hourkm/h
Kilometer per secondkm/sec
Knotknot
Meter per secondm/sec
Mile per hourmph
Other units
Centimeter per hourcm/h
Centimeter per minutecm/min
Centimeter per secondcm/sec
Foot per hourft/h
Kilometer per minutekm/min
Speed of lights
Mach number (At Sea Level)mach
Mach number (SI)
Meter per hourm/h
Meter per minutem/min
Miles per minutemi/min
Miles per hourmi/s
Yard per houryd/h
Yard per minuteyd/min
Yard per secondyd/s
The basic units of speed
Foot per minuteft/min
Foot per secondft/sec
Kilometer per hourkm/h
Kilometer per secondkm/sec
Knotknot
Meter per secondm/sec
Mile per hourmph
Other units
Centimeter per hourcm/h
Centimeter per minutecm/min
Centimeter per secondcm/sec
Foot per hourft/h
Kilometer per minutekm/min
Speed of lights
Mach number (At Sea Level)mach
Mach number (SI)Mach number
Meter per hourm/h
Meter per minutem/min
Miles per minutemi/min
Miles per hourmi/s
Yard per houryd/h
Yard per minuteyd/min
Yard per secondyd/s
The conversion result: