Moles Calculator

Calculate moles from mass and molar mass.

Solve For

n = mass / M | N = n × Nₐ

Solve For

Common Substances

Moles (n)

Mass (m)

Molar Mass (M)

Enter your values above to see the result.

Molecules / Particles

Millimoles

Formulas

n = m / M
m = n × M
N = n × Nₐ

n: moles (mol)
m: mass (grams)
M: molar mass (g/mol)
N: number of molecules
Nₐ: 6.022 × 10²³ mol⁻¹

Common Molar Masses

H₂O: 18.015 g/mol
CO₂: 44.009 g/mol
NaCl: 58.443 g/mol
C₆H₁₂O₆: 180.156 g/mol
H₂SO₄: 98.072 g/mol

Related Calculators

Pro Tips

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