Wave Calculator

Use the wave equation v = f × λ. Enter any two values and we’ll calculate the third.

Leave blank if unknown.
Enter frequency and choose unit.
We convert to Hz internally.
Enter wavelength and choose unit.
We convert to meters internally.
You only need any two values. For light in vacuum, v ≈ 299,792,458 m/s.
Useful for sound, light, and radio waves.