Mach Number Calculator

Mach Number formula(M)=va 

Enter the unknown value as ‘ x ‘

Enter Object Speed(v) = m/s

Enter Speed of Sound(a) = m/s

Mach Number(M) =

x =


Mach Number Calculator is a free online tool that displays the Mach number. BYJU’S online Mach number calculator tool makes the calculation faster, and it displays the Mach number in the surrounding medium in a fraction of seconds.

How to Use the Mach Number Calculator? 

The procedure to use the Mach number calculator is as follows:

Step 1: Enter the flow velocity, speed of sound, and x for the unknown value in the input field

Step 2: Now click the button “Calculate x” to get the Mach number

Step 3: Finally, the Mach Number in the surrounding medium will be displayed in the output field

What is Meant by the Mach Number?

In Physics, Mach number is a dimensionless quantity. It is defined as the ratio of flow velocity and speed of sound in the surrounding medium. The Mach number formula is given by:

Mach Number, M = u/c


“u” is the local flow velocity.

“c” is the speed of sound in the medium.

The Mach number can be classified into different types, namely:

  • Subsonic
  • Transonic
  • Supersonic
  • Hypersonic
  • High-hypersonic
  • Re-entry speeds

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