Angular Momentum Quantum Calculator

Calculate orbital and spin angular momentum quantum properties

Orbital Quantum Number (l):

Magnetic Quantum Number (ml) - optional:

Spin Quantum Number (s):

Spin Projection (ms) - optional:

|L| = hbar * sqrt(l(l+1))

L_z = ml * hbar

|S| = hbar * sqrt(s(s+1))

J = |L - S| to L + S (in integer steps)

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: University Physics

by Young & Freedman

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.