Cubic Unit Cell Calculator
Find crystal density from a cubic unit cell.
Find a crystal's theoretical density from its cubic unit cell.
The math behind it
density = (atoms per cell × atomic mass) ÷ (Avogadro's number × edge³). Edge in pm is converted to cm (×10⁻¹⁰).
Worked example
Copper (FCC, 4 atoms, 361 pm) → ~8.96 g/cm³.
FAQ
Atoms per cell?
Simple cubic 1, body-centred 2, face-centred 4.