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radio_wavelength

Radio/Wavelength Conversions

Convert radio frequency and wavelength units including hertz, kilohertz, megahertz, gigahertz, meter wavelengths, centimeter wavelengths, and millimeter wavelengths.

Open Radio & RF Calculators

Popular Conversions

Common Units

hertz

kilohertz

kHz

megahertz

MHz

gigahertz

GHz

meter wavelength

centimeter wavelength

millimeter wavelength

foot wavelength

Common Questions

How do you convert radio frequency to wavelength?

Use wavelength = speed of light / frequency. This converter uses 299,792,458 meters per second for the speed of light in vacuum.

Why is the 2 meter band near 144 MHz?

A 2 meter wavelength corresponds to about 149.9 MHz in free space, and the amateur 2 meter band sits nearby at roughly 144 to 148 MHz.

Does coax velocity factor change the result?

Yes. Free-space wavelength uses the speed of light, but waves in coax or other materials travel slower. Antenna and feed-line work may need velocity factor.

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