Formula
This calculator uses the equation below. Use it as a quick reference when checking setup before solving.
n_1 sinθ_1 = n_2 sinθ_2Organic Chemistry
Index of Refraction (Snell / refractometry) Calculator
Compute Index of Refraction (Snell / refractometry) using n_1 sinθ_1 = n_2 sinθ_2.
n_1 sinθ_1 = n_2 sinθ_2
Run this calculator
Leave a nullable field blank to solve for it.
Variable glossary
N 2 (n_2)
Input variable 'n_2' for Index of Refraction (Snell / refractometry). Set one variable to null to solve for it.
Sintheta 2 (sintheta_2)
Input variable 'sintheta_2' for Index of Refraction (Snell / refractometry). Set one variable to null to solve for it.
N 1 (n_1)
Result variable 'n_1' for Index of Refraction (Snell / refractometry). Set to null (or omit) to compute this value.
Worked example
Try these sample values to validate the setup, then replace inputs with your own conditions.
- n_2: 2
- sintheta_2: 3
Frequently Asked Questions
What does the Index of Refraction (Snell / refractometry) calculator solve?
It solves Index of Refraction (Snell / refractometry) problems in organic chemistry using your provided inputs and computes unknown values when nullable fields are left blank.
Do I need to convert units before using this tool?
Use the unit toggles where available (for example K/C and L/mL). ChemGenius converts values to the calculator's base units automatically before solving.
Can I save this result in my workflow?
Yes. After computing a result, you can continue into ChemGenius workflows like protocol drafting or notes to keep your calculation context attached to downstream work.