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Diffraction Grating Calculator

Find the diffraction angle for any order of light passing through a grating using the grating equation. Ideal for optics lab work, spectroscopy setups, and physics coursework.

Wavelength (nm)

Grating Spacing (nm)

Diffraction Order

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Optics

Snell's Law Refraction Calculator

Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.

Incident Angle (degrees)

First Medium Refractive Index

Second Medium Refractive Index

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Key differences

	Diffraction Grating Calculator	Snell's Law Refraction Calculator
Category	Optics	Optics
Inputs required	3	3
Result	Diffraction Angle (°)	Refracted Angle (degrees)
What it does	Find the diffraction angle for any order of light passing through a grating using the grating equation. Ideal for optics lab work, spectroscopy setups, and physics coursework.	Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.