swap units ↺

Mach 1 =

741.09699 Miles per Hour

(rounded to 8 digits)

Mach is the ratio of an object's speed to the speed of sound. For example, something traveling at Mach 5 is traveling at 5 times the speed of sound. The speed of sound varies depending on many factors. In dry air, at 0 degrees Celsius, the speed of sound is about 331.3 meters per second.

A mile per hour is a unit of speed commonly used in the United States. It is equal to exactly 1.609344 kilometers per hour.