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