Sound Speed Calculator
Calculate the speed of sound in air by temperature.
About Sound Speed Calculator
Wave relations for Sound Speed link speed, frequency and wavelength so any two determine the third, and period is the reciprocal of frequency. The same wave relationship governs sound, light and water, so one formula serves all of them.
Formula
Sound Speed
Speed = frequency x wavelength; period = 1 / frequency
- hertz
- Cycles per second
- wavelength
- Distance between successive wave crests
Worked example
With the default values below, Sound Speed Calculator returns Wave Speed of 343.20. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Frequencyminimum 0 Hz
- 440 Hz
- Wavelengthminimum 0 m
- 0.78 m
- Wave speedminimum 0 m/s
- 343 m/s
Results
- Wave Speed
- 343.20 m/s
- Period
- 0.00227 s
- Wavelength from Speed
- 0.780 m
Step by step
- 1Values used
- 2Sound Speed
- 3Wave Speed= 343.20 m/s
- 4Period= 0.00227 s
- 5Wavelength from Speed= 0.780 m
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to 5 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Sound Speed calculated?
Speed = frequency x wavelength; period = 1 / frequency Wave relations for Sound Speed link speed, frequency and wavelength so any two determine the third, and period is the reciprocal of frequency.
Why does Sound Speed matter?
The same wave relationship governs sound, light and water, so one formula serves all of them.
What values do I need to enter?
This calculator takes 3 inputs: Frequency, Wavelength, Wave speed. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.