How it's calculated
λ = v ÷ f
λ = wavelength (m), v = wave or propagation speed (m/s), f = frequency (Hz). Reverse: f = v ÷ λ.
Common questions
What is the formula for wavelength?
Wavelength equals the wave speed divided by the frequency, written as lambda = v / f.
Does wave speed change with the medium?
Yes. Light and sound travel at different speeds in different materials, so the calculator lets you pick the medium.