Speed of light (c) to Meters per second (m/s) Conversion
Speed of light
The speed of light in a vacuum (c) is exactly 299,792,458 metres per second — a fundamental constant of nature and the ultimate speed limit of the universe. It is the basis of Einstein's Special Theory of Relativity, which establishes that no object with mass can reach or exceed this speed. The definition of the metre itself is anchored to c: one metre is the distance light travels in 1/299,792,458 of a second.
Meters per second
Metres per second (m/s) is the SI coherent derived unit of speed, the preferred unit for speed in physics, engineering, and scientific literature worldwide because it integrates directly into SI equations. The speed of sound at 20 °C is approximately 343 m/s, human sprinting speed approaches 12 m/s, and the speed of light is exactly 299,792,458 m/s.
| Speed of light (c) | Meters per second (m/s) |
|---|---|
| 0.1 c | 29,979,245.80 m/s |
| 1 c | 299,792,458.00 m/s |
| 2 c | 599,584,916.00 m/s |
| 3 c | 899,377,374.00 m/s |
| 5 c | 1,498,962,290.00 m/s |
| 10 c | 2,997,924,580.00 m/s |
| 20 c | 5,995,849,160.00 m/s |
| 30 c | 8,993,773,740.00 m/s |
| 50 c | 14,989,622,900.00 m/s |
| 100 c | 29,979,245,800.00 m/s |
| 1000 c | 299,792,458,000.00 m/s |
Frequently Asked Questions (FAQ)
How many meters per second are in 1 speed of light?
1 speed of light (c) is exactly 299,792,458 meters per second (m/s).
How do I convert speed of light to meters per second?
Multiply the value in speed of light by 299,792,458 to get the result in meters per second. Or use the converter above — type any number and see the result instantly.