Enter the total number of atoms and the average atomic mass into the calculator to determine the mass of the atoms.

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## Mass of Atoms Formula

The following formula is used to calculate the mass of atoms.

M = a * am

- Where M is the mass in grams
- a is the total number of atoms
- am is the average atomic mass (Amu’s)

To calculate the mass of atoms, multiply the number of atoms by the atomic mass.

## Mass of Atoms Definition

A mass of atoms is defined as the total mass of a group of 1 or more atoms.

## Mass of Atoms Example

How to calculate mass of atoms?

**First, determine the number of atoms.**This can typically be calculated from the number of moles of a substance.

**Next, determine the average atomic mass.**Calculate the average atomic mass using the calculator linked above.

**Finally, calculate the mass.**Calculate the mass using the equation above.

## FAQ

**What is the mass of 1 atom?**

The mass of 1 atoms is determined by the number of protons and neutrons contained in the atom.