Frequency to Wavelength Calculator

Convert between frequency and wavelength for electromagnetic waves using the speed of light.

RF Converter

Quick Guide

The Universal Wave Equation

c = λ × f

c = Speed of light in a vacuum ($299,792,458$ m/s)

λ (Lambda) = Wavelength in meters

f = Frequency in Hertz (1/s)

Inverse Relationship

Frequency and wavelength are inversely proportional. As frequency goes up (e.g. 5GHz Wi-Fi), the wavelength goes down (making antenna sizes smaller).