Interplanar Angle Calculator Interplanar Angle Calculator Crystal System: Cubic Hexagonal Select Element: Custom Fe (BCC) Cu (FCC) Al (FCC) W (BCC) Ti (HCP) Zr (HCP) Mg (HCP) Lattice Parameters: a (Å): c (Å): For hexagonal systems, using Miller-Bravais indices (hkil), where i = -(h+k) First Plane h k i l Second Plane h k i l Calculate Angle The angle between planes is: 0°