Distance divided by time.
Centimeter per Seconds to Speed of lights Converter — cm/s to c
Convert Centimeter per Seconds (cm/s) to Speed of light (c) using the exact conversion factor (1 centimeter per seconds = 3.335641e-11 speed of light). See the formula, worked examples, and conversion table.
Centimeter per Seconds to Speed of lights converter
Converter
Speed Converter
Convert road, aviation, marine, lab, and scientific speed units.
Context values
Some unit families need one extra value for a physically accurate result.
Speed of light in vacuum.
Result = input x 0.01 / 2.99792458e+8.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Centimeter per Seconds to Speed of lights
Centimeter per Seconds and Speed of light both describe speed, and the conversion matters whenever a maritime or aviation speed (knots) needs to be compared against a road speed (mph). Specifically: Distance divided by time, and speed of light in vacuum.
Formula
speed of lights = centimeter per seconds × 3.335641e-11
This factor comes from each unit's defined relationship to the category's base unit: 1 centimeter per seconds equals 0.01 base units, and 1 speed of light equals 299792458 base units, so dividing one by the other gives the direct centimeter per seconds-to-speed of light factor of 3.335641e-11.
Simple example
1 cm/s × 3.335641e-11 = 3.335641e-11 c
1 centimeter per seconds = 3.335641e-11 speed of lights.
Real-world example
10 cm/s × 3.335641e-11 = 3.335641e-10 c
10 centimeter per seconds = 3.335641e-10 speed of lights.
Conversion table
| Centimeter per Seconds (cm/s) | Speed of light (c) |
|---|---|
| 1 cm/s | 3.335641e-11 c |
| 5 cm/s | 1.66782e-10 c |
| 10 cm/s | 3.335641e-10 c |
| 25 cm/s | 8.339102e-10 c |
| 50 cm/s | 1.66782e-9 c |
| 100 cm/s | 3.335641e-9 c |
Reverse conversion: Speed of light to Centimeter per Seconds
3.335641e-11 c × 29979245800 = 1.000000014 cm/s
3.335641e-11 speed of lights = 1.000000014 centimeter per seconds.
centimeter per seconds = speed of lights × 29979245800
For a page dedicated to this direction, see Speed of light to Centimeter per Seconds.
Understanding the Centimeter per Seconds (cm/s)
Distance divided by time.
Understanding the Speed of light (c)
Speed of light in vacuum.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many speed of lights are in 1 centimeter per seconds?
1 centimeter per seconds equals 3.335641e-11 speed of lights, using the exact defined conversion factor rather than an estimate.
How do I convert centimeter per seconds to speed of light?
Multiply the centimeter per seconds value by 3.335641e-11. The converter above does this instantly to whatever precision you set.
How do I convert speed of light back to centimeter per seconds?
Use the reverse factor: 1 speed of light equals 29,979,245,800 centimeter per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a centimeter per seconds?
Centimeter per Seconds (cm/s) is a unit of speed.
What is a speed of light?
Speed of light (c) is a unit of speed.
Is the centimeter per seconds to speed of light conversion exact?
Yes. Both centimeter per seconds and speed of light are defined by fixed standards rather than physical artifacts, so the factor of 3.335641e-11 used above is exact to as many digits as you choose to display.