Convert the speed of light to miles per hour

Explanation

From this page you can convert the speed of light to miles per hour (or c to mph) simply, by using the application above.

In case you are wondering, to convert from the speed of light to miles per hour you need to multiply by 670616629.3844. This factor is calculated using the respective definitions of the two units you can find below.

Formula

1 c≈670616629.3844 mph

speed of lightc

dimension	speed
symbol	c

This unit represents the speed of light in vacuum (c).

The particules that make up light, the photons, are masseless, and when they travel in a medium devoid of other particle, they do it at the maximum speed possible in the universe.

Also, according to Einstein and the theory of relativity, the speed of light is absolute. The relative movement of the light source or the observer will not change its measured value.

Value

The speed of light in vacuum is 299792458 meters per second.

Equivalences

The speed of light is equivalent to:

Some Facts

Right now you are traveling around the Sun at approximately 0.0001 times the speed of light.
The Large Hadron Collider near Geneva can accelerate protons at a speed only 3.1 m/s below the speed of light. At that speed, each individual proton has the kinetic energy of a flying mosquito.
Since 1983, the meter is defined in terms of the speed of light.

Related Conversions

miles per hourmph

dimension	speed
symbol	mph, mi/h

The mile per hour (mph, mi/h) is a unit of speed.

Definition of the mile per hour

One mile per hour is equal to the speed of an object traveling one mile in a time of one hour.

Value in terms of the SI

One mile per hour is equivalent to ¹³⁹⁷⁄₃₁₂₅ meters per second.

Equivalences

One mile per hour is also equivalent to:

Some Facts

The fastest fish, the sailfish, can swim to up to 65 mph (105 kmh).

Other speeds

	second	minute	hour
inch	ips	ipmin	iph
foot	fps	fpmin	fph
yard	yps	ypmin	yph
mile	mps	mpmin	mph