Frequency is directly related to wavelength, which is represented by the Greek symbol lambda (λ). The wavelength is the distance in space required to complete a full cycle of a traveling wave.
The formula for an airborne* wavelength is:
Because a sound wave propagates through space at the speed of sound, calculations are done in the same units (inches, feet, meters, etc.).
Notice that if the speed of sound were to change due to temperature and/or humidity and/or conducting medium, so too would the wavelength.
The wavelength of a sound is inversely proportional to its frequency. In other words, the higher the frequency, the shorter the wavelength. For example, in our human hearing range, a 20 Hz airborne wave has a wavelength of over 56 feet, while a 20 kHz wave has a wavelength of approximately 0.7 inches.
Enter a frequency in Hz: