Speed Converter

Measure the rate at which an object covers distance.

Converting...

Unit Information

Meter per Second (m/s)

Definition: The SI unit of speed, equal to one meter traveled per second.

History: Derived from the base SI units of length and time.

Current Use: Used in physics and engineering for velocity measurements.

Kilometer per Hour (km/h)

Definition: A unit of speed equal to one kilometer traveled per hour.

History: Commonly used with the metric system.

Current Use: Standard unit for vehicle speeds in most countries.

Knots (kn)

Definition: A unit of speed equal to one nautical mile per hour.

History: Originally measured using a knotted rope.

Current Use: Standard unit for maritime and aviation speeds.

Feet per Second (ft/s)

Definition: A unit of speed equal to one foot traveled per second.

History: Used in imperial measurement systems.

Current Use: Used in the US for projectile and fluid velocities.

Mach (M)

Definition: A unit of speed relative to the speed of sound.

History: Named after Austrian physicist Ernst Mach.

Current Use: Used in aerodynamics and supersonic flight.

Did you know?

  • The speed of light in vacuum is 299,792,458 meters per second.
  • A knot is a unit of speed equal to one nautical mile per hour.
  • Mach number represents the ratio of an object's speed to the speed of sound in the surrounding medium.

Common Conversions

Convert Miles per hour to Kilometers per hour

mph * 1.609

Convert Meters per second to Feet per second

m/s * 3.281