Science & Engineering

Moles to Atoms Calculator (Avogadro's Number)

One mole of anything contains Avogadro's number of particles, 6.022 x 10^23. Enter moles to get the particle count, or reverse it to find moles from a count.

For study and estimation. Verify against authoritative data before relying on a result.
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Common values

MolesParticles
16.022 x 10^23
0.53.011 x 10^23
21.204 x 10^24
0.16.022 x 10^22

Common questions

How many atoms are in a mole?

Exactly 6.02214076 x 10^23, which is Avogadro's number. This has been a defined constant since the SI redefinition in 2019.

How do I convert moles to atoms?

Multiply the number of moles by Avogadro's number. For 2 moles you get 2 x 6.022 x 10^23 = 1.204 x 10^24 atoms.

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