Convert frequency to wavelength for sound and other waves. Enter frequency, choose a wave medium, and calculate full wavelength, half wavelength, quarter wavelength, period, and frequency range.
Frequency:
Enter how many cycles occur per second. The calculator accepts Hz, kHz, and MHz.
Wave speed:
Select a preset medium such as sound in air, water, steel, or radio waves, or enter a custom wave speed.
Wavelength:
The calculator divides wave speed by frequency to find the length of one full wave cycle.
A frequency to wavelength calculator helps convert a frequency into a physical distance. It is useful for acoustics, audio, room modes, speaker placement, soundproofing, vibration, radio, and wave analysis.
For sound in air, temperature can slightly change the speed of sound, which changes the calculated wavelength.
The basic formula is:
λ = v ÷ f
Divide wave speed by frequency. For sound in air at 343 m/s, a 1000 Hz sound has a wavelength of about 0.343 meters.
The formula is wavelength equals wave speed divided by frequency, written as λ = v ÷ f.
Yes. If wave speed stays the same, increasing frequency makes wavelength shorter.
Wavelength helps explain room modes, bass buildup, cancellation, speaker spacing, reflection spacing, and how sound interacts with surfaces.