Physics
Basic

Wave Speed

Speed of a wave from frequency and wavelength.

Formula

v=fλv = f\lambda

Variables

fFrequency (Hz)
\lambdaWavelength (m)

Example

A 340 Hz sound at λ = 1 m travels at v = 340·1 = 340 m/s.

Did You Know?

Speed = frequency × wavelength holds for every wave — sound, light, and ocean swells alike.