# Bohr Magneton Constant

Use Bohr Magneton in Calcul.io. See what this built-in constant represents, enter it in an editable calculation, and review related values and units.

## bohrMagneton

Borh magneton

Try it yourself:

```calculio
bohrMagneton
```

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## Bohr Magneton

The **bohrMagneton** is the natural unit of an electron’s magnetic moment, expressed in joules per tesla. It is central to atomic magnetism and Zeeman splitting.

## Physical context

Use it with [elementaryCharge](https://calcul.io/constants/elementaryCharge/index.md), [electronMass](https://calcul.io/constants/electronMass/index.md), and [reducedPlanckConstant](https://calcul.io/constants/reducedPlanckConstant/index.md). Sign and g-factor conventions matter in spin calculations.

[All constants](https://calcul.io/constants/index.md)