Convert between wavelength and frequency.
Wave relations for Wavelength Frequency 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.
Wavelength Frequency
Speed = frequency x wavelength; period = 1 / frequency
Speed = frequency x wavelength; period = 1 / frequency Wave relations for Wavelength Frequency 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.
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.