Snell’s Law Calculator


Understanding the principles of Snell’s Law is crucial in optics and physics. The law describes the relationship between the angles of incidence and refraction when light passes through different mediums. To simplify calculations, a Snell’s Law calculator proves invaluable. This article provides a user-friendly calculator along with an explanation of how to use it effectively.

How to Use

To use the Snell’s Law calculator, follow these steps:

  1. Enter the angle of incidence (i) in degrees.
  2. Input the refractive index of the first medium (n1).
  3. Enter the refractive index of the second medium (n2).
  4. Click the “Calculate” button to obtain the angle of refraction (r).

The calculator employs the accurate formula:


The Snell’s Law formula is represented as:



Suppose you have light passing from air (n1​=1) to water (n2​=1.33). If the angle of incidence is 30 degrees (i=30∘), the calculator will help determine the angle of refraction.


Q: Can I use the calculator for any medium?

A: Yes, the calculator is versatile and works for different mediums with known refractive indices.

Q: Why is Snell’s Law important?

A: Snell’s Law is fundamental for understanding how light changes direction when it passes through different materials.


In conclusion, the Snell’s Law calculator simplifies the calculation of angles of refraction based on the incident angle and refractive indices of two mediums. This tool proves invaluable in optics, physics, and related fields, providing accurate results effortlessly.


  • Raees Mughal

    Meet Raees Mughal, a seasoned SEO author whose expertise lies at the intersection of compelling content and search engine optimization. With a passion for crafting engaging narratives and a keen understanding of the ever-evolving SEO landscape, Raees brings a unique blend of creativity and technical proficiency to the world of digital content. Raees Mughal has a proven track record of helping businesses enhance their online visibility and reach through strategic SEO-driven content. Whether it's creating keyword-rich articles, optimizing website copy, or developing content marketing strategies, Raees leverages his in-depth knowledge of SEO best practices to drive organic traffic and improve search engine rankings.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *