Convert from mach to mile/hour (mph)

Unit Definition (mach)
The Mach is a measure of velocity relative to the speed of sound. The precise speed of sound varies with the density and temperature of the atmosphere, although at 0 °C (at 1atm.) the speed of sound is 331.6 m/s. The mach speed is important to the control of an aircraft, especially at speeds close to or exceeding Mach 1.0. The unit is named after the Austrian physicist Ernst Mach.

Unit Definition (mile/hour (mph))
Mile per hour is a common measurement of speed or velocity. At a constant speed of 1 mile per hour, exactly 1 mile distance would be covered in 1 hour.