Convert moles to molecules, atoms, ions, or other particles with Avogadro’s exact constant, reverse particles to moles, or calculate from sample mass.

Multiply the amount in mol by the exact Avogadro constant. The answer counts the entity you specify.

For example, 0.5 mol. Changing units converts your entered amount.

Choose the entity corresponding to your amount or molar mass. Selecting atoms does not infer atoms per molecule.

Optional settings

Calculator Operations Required Inputs
Convert Moles to Molecules Moles
Convert Molecules to Moles Molecules

Moles to Molecules Formula

The following equation can be used to convert moles into molecules.

N = n × NA
  • Where N is the number of specified entities (molecules for this conversion)
  • n is the amount of substance in mol; N_A = 6.02214076 × 10^23 mol⁻¹ exactly

To calculate the number of molecules, multiply the amount in mol by exactly 6.02214076 × 10^23 mol⁻¹. For the reverse conversion, divide the count by this constant. In mass mode, first divide mass in grams by the corresponding molar mass in g/mol. Choose the entity corresponding to the entered amount or molar mass; selecting atoms does not infer the number of atoms per molecule.

Moles to Molecules Conversion Table (N_A = 6.02214076 × 10^23 mol⁻1)
Moles (mol) Molecules (count)
1×10⁻¹²6.02 × 10^11
1×10⁻⁹6.02 × 10^14
1×10⁻⁶6.02 × 10^17
5×10⁻⁶3.01 × 10^18
0.0016.02 × 10^20
0.0053.01 × 10^21
0.016.02 × 10^21
0.0251.51 × 10^22
0.053.01 × 10^22
0.16.02 × 10^22
0.251.51 × 10^23
0.53.01 × 10^23
0.754.52 × 10^23
16.02 × 10^23
1.59.03 × 10^23
21.20 × 10^24
2.51.51 × 10^24
53.01 × 10^24
7.54.52 × 10^24
106.02 × 10^24
* Rounded to 3 significant figures. Avogadro’s constant N_A = 6.02214076 × 10^23 mol⁻¹ (exact); this table specifies molecules.

Moles to Molecules Definition

The mole (symbol mol) is the SI unit of amount of substance. One mole contains exactly 6.02214076 × 10^23 specified elementary entities, such as molecules, atoms, ions or electrons. For 0.5 mol of molecules, the count is 3.01107038 × 10^23 molecules. The exact conversion constant does not remove uncertainty in a measured amount.

Moles to Molecules Example

How to convert moles to molecules?

  1. First, determine the number of moles.

    Calculate the total number of moles.

  2. Next, calculate the molecules.

    Calculate the total number of molecules using the formula above.

FAQ

How many molecules are in a mole?

The mole (mol) is the SI unit of amount of substance. One mole contains exactly 6.02214076 × 10^23 specified elementary entities. For molecules, 1 mol corresponds to exactly 6.02214076 × 10^23 molecules; the chosen entity must be stated.