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Atoms to Moles Calculator
Convert between particles and moles with Avogadro’s number.
Bridging the mole
A mole is just a count — Avogadro’s number of particles, about 6.022 times ten to the 23rd. This converter moves between a raw particle count and moles in either direction.
One mole is 6.022 times ten to the 23rd atoms; half a mole is about 3.011 times ten to the 23rd. Enter a value and pick the direction to convert.
Precise and private
The conversion runs in your browser, so nothing you enter is uploaded.
Frequently Asked Questions
What is Avogadro’s number?
About 6.022 times ten to the 23rd — the number of particles in one mole.
Which direction does it convert?
Both. Divide particles by Avogadro’s number for moles, or multiply moles by it for particles.
What counts as a particle?
Any entity — atoms, molecules, ions — depending on what your mole refers to.
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