Molar Mass Calculator

Molar mass from a chemical formula.

Input Parameters

Chemical formula

Calculation Summary

Molar mass (g/mol)98.0720 g/mol

Elements

H × 2 = 2.016

O × 4 = 63.996

S × 1 = 32.06

175 available

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About this calculator

Molar mass in g/mol from any formula with parentheses, plus per-element breakdown.

Parentheses?

Supported, e.g. Ca(OH)2 doubles the whole group.

Unknown elements?

30+ common elements included; exotic ones flag invalid.

Use in stoichiometry?

Divide grams by g/mol to get moles for the equation.