Brewster's Angle
Calculate Brewster's Angle instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Brewster's Angle
n₁
n₂
θ_B, °
56.3099
More about: Brewster's Angle
What it calculates
The “Brewster's Angle” calculator computes θ_B, ° from 2 parameters: n₁, n₂.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters n₁ = 1, n₂ = 1.5 the result is 56.31.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.