How to use this tool
Check the units, enter your values, and run the tool. Results follow the assumptions and method below.
Calculation method
Refraction angle from normal
asin(n1*sin(angle*pi/180)/n2)*180/piSnell's Law Calculator
No real refracted angle under total internal reflection.
No real refracted angle under total internal reflection.
Result
Enter your values and run the tool to see your result.