Moles To Molecules Calculator

Work out moles to molecules instantly with clear inputs, formula shown and shareable results.

About Moles To Molecules Calculator

One mole is defined as exactly 6.02214076x10^23 entities, so converting an amount of substance into a particle count is a single multiplication by the Avogadro constant. Multiplying again by the number of atoms in each formula unit gives the total atom count, which is why 2 mol of a triatomic molecule holds three times as many atoms as molecules.

Formulas

Particle count

molecules = moles x 6.02214076e23

Atom count

atoms = molecules x atoms per formula unit

Worked example

With the default values below, Moles To Molecules Calculator returns Molecules of 1.2044 × 10²⁴. Change any input above and every figure here is recalculated in your browser.

Inputs used

Amount of substanceminimum 0 mol: 2 mol
Atoms per molecule (formula units)minimum 1: 3

Results

Molecules: 1.2044 × 10²⁴
Constituent Atoms: 3.6133 × 10²⁴
Molecules Per Mole (Avogadro): 6.0221 × 10²³
Moles Entered: 2.0000

Step by step

1Values used
2Particle count
3Atom count
4Molecules= 1,204,430,000,000,000,000,000,000.0000
5Constituent Atoms= 3,613,280,000,000,000,000,000,000.0000
6Molecules Per Mole (Avogadro)= 602,214,000,000,000,000,000,000.0000
7Moles Entered= 2.0000

Assumptions and limits

The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How many molecules are in one mole?

Exactly 6.02214076x10^23 - the Avogadro constant has been a fixed defined value since the 2019 SI redefinition, so it is not a measured figure any more.

Why is the atom count larger than the molecule count?

Because most molecules contain several atoms. Water has three atoms per molecule, so a mole of water holds 6.022x10^23 molecules but 1.807x10^24 atoms.