Mach Number Calculator

Mach Number Calculator

Flow Velocity:
Sonic Velocity:
Mach Number:
Enter values to calculate
Calculation Steps:
Enter values and click calculate to see detailed calculation steps
Calculation Method

This calculator uses the correct formula for Mach number:

Mach Number = Flow Velocity / Sonic Velocity

Where:

  • Flow Velocity = (Flow Rate in kg/s) / (Density × Pipe Cross-sectional Area)
  • Sonic Velocity = √(γ × P_absolute / ρ)

Absolute pressure is calculated as: P_absolute = P_gauge + 1.01325 bar