Wavelength ↔ Frequency Converter

Your own wave speed, in m/s, used only when the medium is set to custom.

The frequency to convert into a wavelength, in the unit chosen next.

An FM station at 100 MHz has a wavelength of about 3 m.

Multiplier for the frequency value above.

1 kHz = 10³ Hz, 1 MHz = 10⁶ Hz, 1 GHz = 10⁹ Hz.

The wavelength to convert into a frequency, in the unit chosen next.

550 nm is green light.

Length unit for the wavelength value above.

Visible light is measured in nanometres (nm); 1 nm = 10⁻⁹ m.