How many kilometre/hour in 1 speed of light?
The answer is 1078929169.2.
We assume you are converting between kilometre/hour and speed of light [air].
You can view more details on each measurement unit: kilometre/hour or
speed of light
The SI derived unit for speed is the meter/second.
1 meter/second is equal to 3.6 kilometre/hour, or 3.3366416468926E-9 speed of light.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between kilometers/hour and speed of light [air].
Type in your own numbers in the form to convert the units!

The kilometre per hour (American English: kilometer per hour) is a unit of both speed (scalar) and velocity (vector).

The km/h is the worldwide most commonly used speed unit on road signs and car speedometers.

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