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Speed of Sound Calculator

Speed of sound in air at a given temperature.

Estimate the speed of sound in dry air at any temperature using the standard idealized formula.

Daniel Oh By Daniel Oh
Reviewed by Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

°C

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

v ≈ 331.3 · √(1 + T / 273.15) m/s, with T in °C.

In depth

Estimate the speed of sound in dry air at any temperature using the standard idealized formula.