Physics & Engineering
Snell's Law Calculator
Calculate the angle of refraction as light passes between two media using Snell's law.
Your inputs
Change any value to update the result instantly.
Angle of refraction
22.08°
Angle of incidence
30 °
Refractive index ratio (n1/n2)
0.752
Critical angle
0 n/a
Formula and working
n1 sin(θ1) = n2 sin(θ2)
- 1
Collect the inputs
Refractive index of medium 1 = 1; Refractive index of medium 2 = 1.33; Angle of incidence (θ1) = 30 °
- 2
Apply the formula
n1 sin(θ1) = n2 sin(θ2)
- 3
Result
Angle of refraction = 22.08° °
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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