# Speed of Light to Kilometers per Hour Converter

Enter the speed in speed of light below to get the value converted to kilometers per hour.

Results in Kilometers per Hour: 1 c = 1,079,252,848.7999 km/h

Do you want to convert kilometers per hour to speed of light?

## How to Convert Speed of Light to Kilometers per Hour

To convert a measurement in speed of light to a measurement in kilometers per hour, multiply the speed by the following conversion ratio: 1,079,252,848.7999 kilometers per hour/speed of light.

Since one speed of light is equal to 1,079,252,848.7999 kilometers per hour, you can use this simple formula to convert:

kilometers per hour = speed of light × 1,079,252,848.7999

The speed in kilometers per hour is equal to the speed in speed of light multiplied by 1,079,252,848.7999.

For example, here's how to convert 5 speed of light to kilometers per hour using the formula above.
kilometers per hour = (5 c × 1,079,252,848.7999) = 5,396,264,243.9996 km/h Speed of light and kilometers per hour are both units used to measure speed. Keep reading to learn more about each unit of measure.

## What Is the Speed of Light?

The speed of light is equal to exactly 299,792,458 meters per second, or 670,616,629 miles per hour. The definition of the speed of light is actually derived from the most recent 1983 international definition of the meter.

Speed of light can be abbreviated as c; for example, 1 speed of light can be written as 1 c.

## What Are Kilometers per Hour?

Kilometers per hour are a measurement of speed expressing the distance traveled in kilometers in one hour.

The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. Kilometers per hour can be abbreviated as km/h, and are also sometimes abbreviated as kph. For example, 1 kilometer per hour can be written as 1 km/h or 1 kph.

In the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units. For example, km/h is expressing a change in length or distance relative to a change in time.

Kilometers per hour can be expressed using the formula:
vkm/h = dkm / thr

The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours.

## Speed of Light to Kilometer per Hour Conversion Table

Table showing various speed of light measurements converted to kilometers per hour.
Speed Of Light Kilometers Per Hour
0.000000001 c 1.0793 km/h
0.000000002 c 2.1585 km/h
0.000000003 c 3.2378 km/h
0.000000004 c 4.317 km/h
0.000000005 c 5.3963 km/h
0.000000006 c 6.4755 km/h
0.000000007 c 7.5548 km/h
0.000000008 c 8.634 km/h
0.000000009 c 9.7133 km/h
0.0000000001 c 0.107925 km/h
0.000000001 c 1.0793 km/h
0.00000001 c 10.79 km/h
0.0000001 c 107.93 km/h
0.000001 c 1,079 km/h
0.00001 c 10,793 km/h
0.0001 c 107,925 km/h
0.001 c 1,079,253 km/h
0.01 c 10,792,528 km/h
0.1 c 107,925,285 km/h
1 c 1,079,252,849 km/h

## References

1. National Institute of Standards and Technology, SI Redefinition: Meter, https://www.nist.gov/si-redefinition/meter
2. National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using