JavaScript is turned off in your web browser.

Please turn it on to take full advantage of this website, then refresh the web page.

Calculator for conversions between speed units.

From Unit:

- Select -
Centimeter Per Minute (cm/m)
Centimeter Per Second (cm/s)
Foot Per Hour (fph)
Foot Per Minute (fpm)
Foot Per Second (fps)
Furlong Per Fortnight (f.p.f.)
Inch Per Minute (ipm)
Inch Per Second (ips)
Kilometer Per Hour (km/h)
Kilometer Per Minute (km/m)
Kilometer Per Second (km/s)
Knot (kn)
Mach Number (M)
Meter Per Hour (m/h)
Meter Per Minute (m/m)
Meter Per Second (m/s)
Mile Per Hour (mph)
Mile Per Minute (mpm)
Mile Per Second (mps)
Speed Of Light [Vacuum] (c)
Speed Of Sound [Air, 20°C, 68°F] (s)
Yard Per Hour (yph)
Yard Per Minute (ypm)
Yard Per Second (yps)

Input Value:

To Unit:

- Select -
Centimeter Per Minute (cm/m)
Centimeter Per Second (cm/s)
Foot Per Hour (fph)
Foot Per Minute (fpm)
Foot Per Second (fps)
Furlong Per Fortnight (f.p.f.)
Inch Per Minute (ipm)
Inch Per Second (ips)
Kilometer Per Hour (km/h)
Kilometer Per Minute (km/m)
Kilometer Per Second (km/s)
Knot (kn)
Mach Number (M)
Meter Per Hour (m/h)
Meter Per Minute (m/m)
Meter Per Second (m/s)
Mile Per Hour (mph)
Mile Per Minute (mpm)
Mile Per Second (mps)
Speed Of Light [Vacuum] (c)
Speed Of Sound [Air, 20°C, 68°F] (s)
Yard Per Hour (yph)
Yard Per Minute (ypm)
Yard Per Second (yps)

Converted Value:

Speed

In physics, speed is defined as the distance an object travels in a certain amount of time, or *V*=*D*/*T* where *V* is speed, *D* is distance and *T* is time.
The SI unit of speed is the *meter per second* (m/s). Light travels in vacuum at the speed of 299,792,458 m/s.
Since the distance between the Sun and the Earth is 150 million km, sunlight takes about 8 minutes to reach the Earth.

The next time when you get a good tan at the beach, you know that the sunlight you have is 8 minutes old - so enjoy the fresh sunlight!

The next time when you get a good tan at the beach, you know that the sunlight you have is 8 minutes old - so enjoy the fresh sunlight!

Related Conversion Tool

Do you know?

Faster than a speeding bullet!

"Faster than a speeding bullet" is a phrase used to describe the super-speed power of *Superman*, the fictional superhero character.
What is Superman's maximum speed? No one really knows.
According to the laws of physics, however, the speed of light is the maximum speed for objects with positive rest mass.