Chemistry

MolecularWeightCalculator

Calculate the molecular weight (molar mass) of any chemical compound from its formula.

Molecular Weight Calculator

Enter a chemical formula to calculate its molecular weight

Results

Enter a formula to calculate

Example Formulas:

  • H₂O = 18.015 g/mol
  • NaCl = 58.44 g/mol
  • C₆H₁₂O₆ = 180.16 g/mol

Understanding Molecular Weight

Molecular weight (also called molecular mass) is the mass of a molecule calculated as the sum of the atomic masses of its constituent atoms. It's expressed in grams per mole (g/mol) and is essential for stoichiometry calculations.