Example:
15 m/s = 0.043655 Mach (20°C, 1 atm)
1 m/s = 0.00291 Mach (20°C, 1 atm) | 1 Mach (20°C, 1 atm) = 343.6 m/s
Conversion Steps:
15 × (1 / 343.6) = 0.043655413