The mach number is a ratio between the aircraft's speed (v) and the speed of sound (a). Mach number equals object speed divided by speed of sound. Use this aerodynamics calculator to calculate the mach number for your aerodynamics problems.
Formula:
M = V / a
where,V - Velocity
a - Speed of sound
There are three important regions of Mach Numbers:
1. M < 1: Subsonic flow2. M = 1: Sonic flow
3. M > 1: Supersonic flow
| Mach number | M < 0.3 | 0.3 < M < 1 | M = 1 | M ≈ 1 | 1 < M < 5 | 5 < M |
| Name: | Low subsonic | High subsonic | Sonic | Transonic | Supersonic | Hypersonic |