Miller Indices Calculator
Calculate Miller Indices
Enter Intercepts
About Miller Indices
Miller indices are a notation system used to describe crystal planes and directions in crystallography. They are represented as three integers (h k l) for planes and [u v w] for directions.
For Planes:
Take reciprocals of intercepts, clear fractions, and reduce to smallest integers
Interplanar Spacing (Cubic):
d = a / √(h² + k² + l²)
Interplanar Spacing (Tetragonal):
d = 1 / √((h² + k²)/a² + l²/c²)
Miller indices are essential in X-ray diffraction, crystal growth, and materials science for describing crystal structure and properties.