FREE ONLINE CALCULATOR / PHYSICS
Snell’s Law Calculator
Calculate refracted angle using Snell’s law. Fast, private, and built to make every number easier.
Input values
✦ InteractiveHow does this calculator work?
Calculate refracted angle using Snell’s law. Edit the inputs and see the computed results. All calculations take place inside your browser, without submitting values to a server.
n₁sinθ₁=n₂sinθ₂
Note: If |sinθ₂| > 1, total internal reflection occurs.
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