Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Snell's Law Refraction Calculator

Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.

Incident Angle (degrees)

First Medium Refractive Index

Second Medium Refractive Index

Fill in the required fields to see your result.

Optics

Polarization & Malus Law Calculator

Calculates transmitted light intensity after passing through one or more polarizers using Malus's Law. Use it when designing optical systems, analyzing polarized filters, or studying light attenuation in physics labs.

Initial Light Intensity (W/m²)

Polarizer Angle (degrees)

Number of Polarizers

Fill in the required fields to see your result.

Key differences

	Snell's Law Refraction Calculator	Polarization & Malus Law Calculator
Category	Optics	Optics
Inputs required	3	3
Result	Refracted Angle (degrees)	Transmitted Intensity (W/m²)
What it does	Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.	Calculates transmitted light intensity after passing through one or more polarizers using Malus's Law. Use it when designing optical systems, analyzing polarized filters, or studying light attenuation in physics labs.