Science calculators
Calculate the molar mass of a compound from its chemical formula.
About these calculators
Molar mass connects the formula of a compound to something you can weigh in the lab. The Molar Mass Calculator reads formulas with parentheses and hydrates, and shows how much each element contributes.
It uses the standard atomic weights published by the IUPAC Commission on Isotopic Abundances and Atomic Weights, so you can check every number against the source.