Convert moles to molecules, atoms, ions, or other particles with Avogadro’s exact constant, reverse particles to moles, or calculate from sample mass.
| 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.
- 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 (mol) | Molecules (count) |
|---|---|
| 1×10⁻¹² | 6.02 × 10^11 |
| 1×10⁻⁹ | 6.02 × 10^14 |
| 1×10⁻⁶ | 6.02 × 10^17 |
| 5×10⁻⁶ | 3.01 × 10^18 |
| 0.001 | 6.02 × 10^20 |
| 0.005 | 3.01 × 10^21 |
| 0.01 | 6.02 × 10^21 |
| 0.025 | 1.51 × 10^22 |
| 0.05 | 3.01 × 10^22 |
| 0.1 | 6.02 × 10^22 |
| 0.25 | 1.51 × 10^23 |
| 0.5 | 3.01 × 10^23 |
| 0.75 | 4.52 × 10^23 |
| 1 | 6.02 × 10^23 |
| 1.5 | 9.03 × 10^23 |
| 2 | 1.20 × 10^24 |
| 2.5 | 1.51 × 10^24 |
| 5 | 3.01 × 10^24 |
| 7.5 | 4.52 × 10^24 |
| 10 | 6.02 × 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?
- First, determine the number of moles.
Calculate the total number of moles.
- Next, calculate the molecules.
Calculate the total number of molecules using the formula above.
FAQ
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.

