Grams to Atoms Calculator

Conversion Grams to Atoms

Converting grams to atoms or vice versa involves using molar mass and Avogadro's number to do the math.

Avogadro’s Number: But wait, what actually is Avogadro's Number? The value number is 6.02 * 10²³ atoms. We use Avogadro’s Number to describe the number of particles in one mole of a substance.
Molar Mass: The molar mass is defined as the mass of a mole of a substance, and that mole contains Avogadro’s number of atoms or molecules (6.022 x 10²³ particles). The molar mass is measured in grams per mole (g/mol).

The tool is user-friendly and super easy to use as follows:

Enter the molar mass number and grams in the input field.
Select the calculation type, and decide whether you are going to convert grams to atoms or vice versa.
Click the ‘Calculate’ button to start conversion.
The calculator will show the result in the output field.

Grams to Atoms Formula: Number of atoms = (Grams/Molar Mass) * Avogadro’s Number
To make it more understandable, here we will provide you with an example:

=> Let’s convert 10 grams of carbon into atoms!

=> Solution
- The molar mass of carbon is 12.01 g/mol
- Apply the formula
- Number of atoms = (10/12.01) * 6.022 × 10²³
- Number of atoms = 0.8327 * 6.022 × 10²³
- Number of atoms = 5.01 10²³ atoms
So, 10 grams of carbon equals approximately 5.01 × 10²³ atoms.
Atoms to Grams Formula:
Number of grams = (Atoms/Avogadro’s Number) * Molar Mass

See the following example to understand how to convert atoms to grams:

=> Let’s convert 5.01 × 10²³ atoms of carbon to grams

=> Solution
- The molar mass of carbon is 12.01 g/mol
- Apply the formula
- Number of grams = (5.01 10²³ / 6.022 × 10²³) * 12.01
- Number of grams = 0.8327 * 12.01
- Number of grams = 10
So, 5.01 × 10²³ atoms equals approximately 10 grams.