Angle of Refraction Calculator
Angle of refraction from Snell law, with critical angle and total internal reflection check.
Compare Your Options And Get Clear Answers
Angle of refraction from Snell law, with critical angle and total internal reflection check.
Angle of Refraction Estimator
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How It Works
Key concepts behind this calculator
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Angle Quick Guide
Typical values for reference.
| n1 | n2 | Incidence | Refraction |
|---|---|---|---|
| 1 | 1.33 | 10 | 7.50 deg |
| 1 | 1.33 | 30 | 22.08 deg |
| 1 | 1.33 | 40 | 28.90 deg |
| 1 | 1.33 | 60 | 40.63 deg |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Angle of Refraction Calculator FAQ
Answers to common questions about this calculator.
n1 sin(theta1) = n2 sin(theta2).
When light inside a denser medium hits the boundary beyond the critical angle.
n1 sin(a1) = n2 sin(a2).
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.