All LNP calculators / Prepare solutions
Formula to molecular weight
Calculate average molar mass from a chemical formula, including parentheses, salts and hydrates.
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Calculation basis
Sum atom count × standard atomic weight. Supports the 84 elements with CIAAW abridged standard weights. The result is average molar mass, not monoisotopic mass. No isotope labels, ionic-charge suffixes or variable polymer repeat counts.