Speed of Light to Meters per Second Conversion (c to m/s)

Speed of Light to Meters per Second Converter

Enter the speed in speed of light below to get the value converted to meters per second.

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Result in Meters per Second:

1 c = 299,792,458 m/s

How to Convert Speed of Light to Meters per Second

To convert a measurement in speed of light to a measurement in meters per second, multiply the speed by the following conversion ratio: 299,792,458 meters per second/speed of light.

Since one speed of light is equal to 299,792,458 meters per second, you can use this simple formula to convert:

meters per second = speed of light × 299,792,458

The speed in meters per second is equal to the speed in speed of light multiplied by 299,792,458.

For example, here's how to convert 5 speed of light to meters per second using the formula above.

meters per second = (5 c × 299,792,458) = 1,498,962,290 m/s

Speed of light and meters per second 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.^[1]

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

Learn more about the speed of light.

What Are Meters per Second?

Meters per second are a measurement of speed expressing the distance traveled in meters in one second.

The meter per second, or metre per second, is the SI derived unit for speed in the metric system. Meters per second can be abbreviated as m/s, and are also sometimes abbreviated as m/sec. For example, 1 meter per second can be written as 1 m/s or 1 m/sec.

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.^[2] For example, m/s is expressing a change in length or distance relative to a change in time.

Meters per second can be expressed using the formula:
v_m/s = d_m / t_sec

The velocity in meters per second is equal to the distance in meters divided by time in seconds.

Learn more about meters per second.

Speed of Light to Meter per Second Conversion Table

Table showing various speed of light measurements converted to meters per second.
Speed Of Light	Meters Per Second
0.00000001 c	2.9979 m/s
0.00000002 c	5.9958 m/s
0.00000003 c	8.9938 m/s
0.00000004 c	11.99 m/s
0.00000005 c	14.99 m/s
0.00000006 c	17.99 m/s
0.00000007 c	20.99 m/s
0.00000008 c	23.98 m/s
0.00000009 c	26.98 m/s
0.000000001 c	0.299792 m/s
0.00000001 c	2.9979 m/s
0.0000001 c	29.98 m/s
0.000001 c	299.79 m/s
0.00001 c	2,998 m/s
0.0001 c	29,979 m/s
0.001 c	299,792 m/s
0.01 c	2,997,925 m/s
0.1 c	29,979,246 m/s
1 c	299,792,458 m/s

Table showing various speed of light measurements converted to meters per second.

Speed Of Light

Meters Per Second

0.00000001 c

2.9979 m/s

0.00000002 c

5.9958 m/s

0.00000003 c

8.9938 m/s

0.00000004 c

11.99 m/s

0.00000005 c

14.99 m/s

0.00000006 c

17.99 m/s

0.00000007 c

20.99 m/s

0.00000008 c

23.98 m/s

0.00000009 c

26.98 m/s

0.000000001 c

0.299792 m/s

0.00000001 c

2.9979 m/s

0.0000001 c

29.98 m/s

0.000001 c

299.79 m/s

0.00001 c

2,998 m/s

0.0001 c

29,979 m/s

0.001 c

299,792 m/s

0.01 c

2,997,925 m/s

0.1 c

29,979,246 m/s

1 c

299,792,458 m/s

References

National Institute of Standards and Technology, SI Redefinition: Meter, https://www.nist.gov/si-redefinition/meter
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