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Calculators/Fluid Mechanics

Gas Speed of Sound, Mach and Stagnation State

Inputs

Example values are filled in. Review them for your calculation.

Static absolute pressure (Pa)

Static absolute temperature (K)

Specific gas constant (J/(kg·K))

Constant heat-capacity ratio γ = cp/cv

Flow speed (m/s)

Results

Your results will appear here after calculation, with units and steps to help you review them.

References

NASA Glenn: Isentropic Flow EquationsSource accessed 2026-09-08
NASA Glenn: Speed of SoundSource accessed 2026-09-08

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Gas Speed of Sound, Mach and Stagnation State | Engivault