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Wave Speed Frequency and Wavelength Calculator

v = fλ — the fundamental wave relationship.

Calculates wave speed, frequency, or wavelength from the other two using the fundamental wave equation v = fλ. Works for sound, light, water waves, or any periodic wave.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

v = f × λ; f = v / λ; λ = v / f

In depth

Calculates wave speed, frequency, or wavelength from the other two using the fundamental wave equation v = fλ. Works for sound, light, water waves, or any periodic wave.