Frequency of Light Calculator

Convert a light wavelength to its frequency.

Frequency (Hz) 545,077,196,363,636.3

Frequency (THz) 545.08

Formula: f = c ÷ λ

Step-by-step with your numbers:

1. Values used:

2. Wavelength = 550 nm

4. Frequency = 545,077,196,363,636.3Hz

5. Frequency = 545.08THz

Did we solve your problem today?

A light wave's frequency is the speed of light divided by its wavelength.

The math behind it

f = c ÷ λ. Shorter wavelengths (blue) have higher frequencies than longer ones (red).

550 nm (green) → about 545 THz.

How does this relate to color?

Visible color is set by frequency, roughly 430 THz (red) to 750 THz (violet).