Convert Centimeter/Hour (cm/h) to Kilometer/Second (km/s) instantly.
Centimeter/Hour to Kilometer/Second conversion
1 Centimeter/Hour (cm/h) = 2.7777778e-9 Kilometer/Second (km/s). To convert Centimeter/Hour to Kilometer/Second, multiply the value by 2.7777778e-9.
| Centimeter/Hour (cm/h) | Kilometer/Second (km/s) |
|---|---|
| 1 | 2.7777778e-9 |
| 2 | 5.5555556e-9 |
| 5 | 1.3888889e-8 |
| 10 | 2.7777778e-8 |
| 25 | 6.9444444e-8 |
| 50 | 1.3888889e-7 |
| 100 | 2.7777778e-7 |
| 1000 | 0.0000027777778 |
Frequently asked questions
How many Kilometer/Second are in one Centimeter/Hour?
One Centimeter/Hour (cm/h) equals 2.7777778e-9 Kilometer/Second (km/s).
How do I convert Centimeter/Hour to Kilometer/Second?
To convert Centimeter/Hour to Kilometer/Second, multiply the value by 2.7777778e-9.
What is 10 Centimeter/Hour in Kilometer/Second?
10 Centimeter/Hour = 2.7777778e-8 Kilometer/Second.
About these units
Centimeter/Hour (cm/h)
A centimeter per hour is used in fields where extremely slow processes are tracked, including seepage rates in soil hydrology, chemical diffusion fronts in laboratory experiments, and biological growth in certain organisms. Urban planning and material science may use cm/h to describe settlement rates in soft soils or long-term deformation of structural components. Although rarely used in public communication, cm/h is invaluable in precision scientific contexts where even a centimeter over an hour represents meaningful change.
Kilometer/Second (km/s)
A kilometer per second represents a very high speed—1,000 meters every second—and is particularly important in astronomy, planetary science, and astrophysics. Orbital velocities around planets, escape velocities, solar winds, and the motion of stars relative to each other are commonly measured in km/s. This scale captures speeds far beyond terrestrial transportation. For example, Earth orbits the Sun at roughly 30 km/s, and meteoroids entering Earth's atmosphere may arrive at speeds between 11 and 72 km/s. km/s is a natural step up from m/s when describing the motion of celestial bodies.