Avogadro Number Calculator
Calculate particles, moles, or mass using Avogadro’s constant
About Avogadro’s Number
Avogadro’s constant, 6.022 × 10²³ particles per mole, relates the number of particles in a substance to the amount in moles.
Formulas
– Particles = moles × (6.022 × 10²³)
– Moles = particles ÷ (6.022 × 10²³)
– Mass = moles × molar mass
Example
2 moles of H₂O = 2 × 6.022 × 10²³ = 1.204 × 10²⁴ molecules
If molar mass = 18 g/mol → Mass = 2 × 18 = 36 g