Moles to Particles Calculator

Avogadro's number (about 6.022 × 10²³) is the bridge between the everyday-sized quantity of moles and the astronomically large number of individual atoms or molecules they contain.

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What Is a Moles-to-Particles (Avogadro's Number) Calculator?

Avogadro's number (about 6.022 × 10²³) is the bridge between the everyday-sized quantity of moles and the astronomically large number of individual atoms or molecules they contain. This calculator converts between moles and particle count in either direction.

How to Use This Moles-to-Particles (Avogadro's Number) Calculator

  1. Enter either the number of moles, or the number of particles (atoms, molecules, etc.) — leave the other field blank.
  2. Click Calculate to convert between them.

Formula

Worked Example

How many molecules are in 2 moles of water? Number of Particles = 2 × 6.022×10²³ ≈ 1.204 × 10²⁴ molecules.

Frequently Asked Questions

How are moles converted to particles?

Particles = moles × Avogadro's number (about 6.022 × 10²³).

What is Avogadro's number?

The fixed number of particles in one mole of a substance.

Why is the mole such a large number?

Individual atoms/molecules are tiny, so a huge count represents a practical amount.

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