The wavelength (λ) is calculated by dividing the speed of sound (c) by the frequency (f).
One has: λ = c/f
Sound travels with a speed of 343 meters per second in air at 20° Celsius. A temperature increase of 1° Celsius equals an increase in speed of 0.6 meters per second. You can calculate the wavelength of a frequency at 20° Celsius with the following calculator.
The frequency (f) is calculated by dividing the speed of sound (c) by the wavelength (λ).
One has: f=c/λ
You can calculate the frequency at a temperature of 20° Celsius with the following calculator: