Molar Mass Calculator
Calculate molar mass from chemical formulas. Find percent composition and convert between mass and moles.
Input

Supports parentheses: Ca(OH)2, Mg3(PO4)2

Common Compounds
How to Use
  • Enter a chemical formula using standard notation
  • Use parentheses for polyatomic ions: Ca(OH)2
  • Subscripts are written as numbers: H2O, C6H12O6
  • Optionally enter mass or moles for conversions

Examples: H2O (water), NaCl (salt), C6H12O6 (glucose), Ca(OH)2 (calcium hydroxide), Mg3(PO4)2 (magnesium phosphate)

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