Frequency of Light Calculator

Calculate frequency of light from wavelength or energy. Convert between wavelength, frequency, and photon energy.

Input Parameters

Calculation Type

Wavelength (nm)

Results

Enter values and click Calculate

About Frequency of Light Calculator

Light frequency is related to wavelength by f = c/λ, where c is the speed of light. Photon energy is E = hf, where h is Planck's constant. Frequency determines the color of visible light.