Convert Centimeter/Hour (cm/h) to Speed of Light (c) instantly.
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.
Speed of Light (c)
The speed of light in a vacuum, denoted c, is exactly 299,792,458 m/s, one of the most fundamental constants of physics. Light speed defines the structure of spacetime, the upper limit for classical information transfer, and the basis for relativity. Time dilation, length contraction, and mass-energy equivalence (E = mc²) all arise from the invariance of c. In astronomy, the speed of light is used to define light-years, measure cosmic distances, and synchronize observations across telescopes. In communication technology, optical networks rely on light-speed propagation through fiber, albeit slightly slower than in vacuum. c is not just a speed—it is a cornerstone of the physical universe.