Convert Mach (SI Standard) (Ma) to Meter/Hour (m/h) instantly.
About these units
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.
Meter/Hour (m/h)
A meter per hour is an extremely slow speed, corresponding to the distance of a single meter traveled over a 60-minute period. This unit is rarely encountered in daily life but is useful in engineering contexts where mechanical motion is very slow—such as conveyor systems, slow-moving robotics, geological creep, or precision laboratory instruments. Environmental sciences also use m/h to describe gradual natural processes like glacier movement or soil displacement. The unit highlights the diversity of real-world velocities—from near-light-speed phenomena to movements almost imperceptibly slow.