Convert Centimeter/Second (cm/s) to Mach (SI Standard) (Ma) instantly.
About these units
Centimeter/Second (cm/s)
A centimeter per second is widely used in hydrology, biology, and physics to measure modest fluid flows, blood velocities, small organism movement, or lab-scale chemical transport. In medicine, cm/s is important in Doppler ultrasound, where blood flow speeds in arteries and veins are routinely measured. In physical sciences, cm/s appears in low-speed fluid mechanics experiments, sediment transport studies, and oceanographic microcurrent analysis. It offers a convenient, human-comprehensible scale for small but dynamic systems.
Mach (SI Standard) (Ma)
Mach is a dimensionless measure of speed relative to the speed of sound in a given medium. Mach 1 corresponds to the speed of sound, Mach 2 is twice that speed, and so on. Mach values change with temperature, atmospheric pressure, and altitude because the speed of sound changes with these conditions. Aircraft performance, supersonic flight, rocket design, and shockwave analysis all depend heavily on Mach numbers. Mach is more than just a speed measure—it categorizes aerodynamic regimes: Subsonic (Mach < 1), Transonic (Mach 0.8–1.2), Supersonic (Mach 1–5), Hypersonic (Mach > 5). Mach numbers therefore provide insight into aerodynamic behavior, not just velocity.