Avogadro Number Calculator

If you are in search of how to converter mass to moles then you can use this online free Avagadro number calculator by Chemical Tweak.

Calculate particles, moles, and molecular quantities

Avogadro’s Number

6.022 × 10²³ particles/mol

Enter number of moles:

× 10^

Enter mass (grams):

Enter molar mass (g/mol):

Enter number of atoms/particles:

× 10^

Result

Enter values above to see calculations

Formulas Used:

Number of particles/atoms = Moles × Avogadro’s number
Number of moles = Mass (g) ÷ Molar mass (g/mol)
Number of moles = Particles/atoms ÷ Avogadro’s number

How to Use Avogadro’s Number Calculator

Enter the mass of the substance (in grams).
Provide the molar mass (grams per mole).
The calculator will show the number of moles and particles.

What Is Avogadro’s Number?

Avogadro’s number, also referred to as Avogadro’s constant, is the number of particles (such as atoms, molecules, ions, or electrons) present in one mole of a substance. Its value is 6.02214076 × 10²³ mol⁻¹

Formulas

Moles = Mass ÷ Molar Mass
Particles = Moles × Avogadro’s Number (6.022 × 10²³)

💧 Example: Water (H₂O)

Let’s say you have 18 grams of water.
The molar mass of water is approximately 18.015 g/mol.

Step 1: Calculate Moles
Moles=Mass / Molar Mass
=18/18.015 ≈ 0.999 mol

Step 2: Calculate Number of Particles

Particles = Moles×Avogadro’s Number

=0.999×6.022×10^23 ≈ 6.02×10^23 molecules

= 0.999 * 6.02210^23 = 6.02* 10^23 molecules

Previously, we have posted different tools for chemical engineers, like Reynolds Number Calculator. Do check them also.

FAQ (Mole to particles calculator)

1. What is Avogadro’s number used for?

It’s used to count atoms or molecules in a substance. Avogadro’s number helps convert between the mass you measure and the number of particles involved in a chemical reaction.

2. How to calculate the number of moles?

To find the number of moles, divide the mass of a substance (in grams) by its molar mass (grams per mole).