How to Convert Moles to Particles (N = n × NA)
Convert moles into atoms, molecules, or ions step-by-step:
Choose Input Unit
Select whether converting from moles or particle count.
Enter Quantity
Input numeric moles n or scientific notation particle count N.
Multiply by NA
Multiply moles by 6.02214076 × 10²³ particles/mol.
View Scientific Notation
Get formatted scientific notation output and exact particle tally.
Key Features & SI Base Units
2019 SI Redefinition Constant
Uses exact defined constant NA = 6.02214076 × 10²³ mol⁻¹.
Scientific & Standard Notation
Converts cleanly between scientific exponent notation and decimal moles.
Multi-Entity Application
Applies universally to atoms, molecules, ions, electrons, and photons.
Chemistry Guide: The Mole & Avogadro's Constant
The mole (symbol: mol) is the SI base unit for amount of substance. Named after Italian scientist Amedeo Avogadro, one mole contains exactly 6.02214076 × 10²³ elementary entities.
The fundamental relationship linking macro mass scale and microscopic atomic count is:N = n × NAwhere N is particle count, n is moles, and NA is Avogadro's constant.
Frequently Asked Questions
?How big is Avogadro's Number?
Avogadro's number (602.2 sextillion) is astronomically large. If you had 1 mole of marbles, they would cover the entire surface of the Earth to a depth of over 50 miles!