What is the Bohr magneton?

The Bohr magneton is μ_B = 9.2740100783e-24 J/T (uncertainty ±2.8e-33). In eV/T it is 5.7883818060e-5 eV/T.

Key facts

Frequently asked questions

What is the value of the Bohr magneton?

μ_B = 9.2740100783e-24 J/T, the natural unit of electron magnetic moment.

What is the Bohr magneton used for?

It is the scale for atomic and electron magnetic moments in magnetism and spectroscopy.

How does it compare to the nuclear magneton?

The Bohr magneton is about 1836 times larger because it uses the electron mass instead of the proton mass.

Related pages

• Speed of light
• Planck constant
• Reduced Planck constant
• Avogadro constant
• Boltzmann constant
• Molar gas constant
• Elementary charge
• Gravitational constant

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