Magnetic Moment Calculator

Find the spin-only magnetic moment from unpaired electrons.

Magnetic moment (μ_B) 3.873

Magnetic moment (J/T) 0

Formula: μ = √(n(n+2)) Bohr magnetons

Step-by-step with your numbers:

1. Values used:

2. Unpaired electrons = 3

4. Magnetic moment = 3.873μ_B

5. Magnetic moment = 0J/T

Did we solve your problem today?

The spin-only formula estimates a transition metal ion's magnetic moment from unpaired electrons.

The math behind it

μ = √(n(n+2)) Bohr magnetons, where n is the number of unpaired electrons.

3 unpaired electrons → about 3.87 μ_B.

Why ignore orbital contribution?

In many first-row transition metals it is largely quenched, so spin-only works well.