How Many Particles in 1 Mole?
1 mole of any substance contains exactly 6.022×10²³ particles (Avogadro's number).
How to use this tool
- Enter amount (moles) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your number of particles and the full breakdown beneath it.
Calculate the number of particles in 1 mole to confirm Avogadro's number.
Frequently asked questions
- What is Avogadro's number?
- N_A = 6.02214076×10²³ mol⁻¹ (exact since 2019 SI redefinition). It defines how many elementary entities are in one mole of a substance.
- What counts as a 'particle'?
- Depends on context: atoms (for elements), molecules (for molecular compounds), formula units (for ionic compounds), or ions. Always specify the entity.