Brewster's Angle Calculator

Calculate Brewster's angle (polarization angle) for any optical interface. Determine the incidence angle at which reflected light is completely s-polarized.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
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How to Use

Enter the values for the scenario you are assessing. Calculate Brewster's angle (polarization angle) for any optical interface. Determine the incidence angle at which reflected light is completely s-polarized. Use the brewster's angle result to inform your calculation.

Frequently Asked Questions