Physics

Frequency of Light Calculator

Convert a light wavelength to its frequency.

Calculated Output

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

Frequency (THz) 545.08

Formula: f = c ÷ λ

Step-by-Step Breakdown

1. Values used:

2. Wavelength = 550 nm

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

5. Frequency = 545.08THz

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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).