What is a mole?
A mole is the SI unit for amount of substance. One mole contains exactly 6.02214076 × 10²³ particles (Avogadro's number). It bridges the atomic world to the macroscopic world.
Mass = Moles × Molar Mass
Moles = Mass / Molar Mass
Last updated: April 13, 2026
Mole Calculator
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