Mach Number Calculator

The Mach number can be used to determine if a flow is compressible or incompressible. This page allows you to calculate Mach number for any fluid, just adjust the speed of sound in the fluid to match your requirements!
CalculationInputs﻿﻿Velocity, m/s
:100.000​
﻿
﻿﻿Speed of Sound in Fluid, m/s
:343​
﻿
Output﻿﻿Mach Number
:0.2915​
﻿
ExplanationThe Mach number represents the ratio between velocity and the speed of sound in the surrounding fluid. Mach number can determine whether a flow is compressible or incompressible.
﻿
M=VcM = \frac VcM=cV​
Where:
﻿
V=velocity (ms−1)c=speed of sound in the fluid (ms−1)V = velocity \: (ms^{-1}) \\ c = speed \: of \: sound \: in \: the \: fluid \: (ms^{-1})V=velocity(ms−1)c=speedofsoundinthefluid(ms−1)
📝 Speed of Sound in Fluid values for Common Materials
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