What is mile per minute?

Mile per minute is a unit of speed equal to 60 miles per hour. It is occasionally used in motorsport, aviation briefings, and quick calculations for high-speed travel in imperial measurement systems.

What is mach (approx at sea level)?

Mach is a dimensionless speed unit expressing the ratio of an object’s speed to the local speed of sound. At sea level, Mach 1 is approximately 343 m/s. It is used in aviation and aerodynamics to characterise high-speed flight regimes.

Worked examples

1 mile per minute = 0.07882218 mach (approx at sea level)

1 mach (approx at sea level) = 340.29 metre per second