Magnetic Moment Calculator

Calculate magnetic dipole moments for classical and quantum systems

Calculation Type:

Current (A):

Area (cm²):

Number of Turns:

Magnetic Field (T): (optional - for energy/splitting)

About Magnetic Moments

The magnetic moment quantifies the strength of a magnetic dipole. For quantum systems, it is quantized and related to angular momentum through the gyromagnetic ratio.

Key Formulas:

Current loop: μ = NIA
Spin: μs = gs√(s(s+1))μB
Orbital: μL = √(l(l+1))μB
Bohr magneton: μB = eℏ/(2me) = 9.274×10⁻²⁴ J/T