This calculator allows you to convert from Mach (20°C, 1 atm) to Mile/minute and in a reverse direction. To convert from Mach (20°C, 1 atm) to Mile/minute, enter the amount of Mach (20°C, 1 atm) into the first input and to convert from Mile/minute to Mach (20°C, 1 atm), enter the amount of Mile/minute into the second input.