Molarity calculator
Convert between mass, molar concentration and volume for a solution.
Runs in your browser
g/mol
From the reagent bottle or supplier datasheet.
Mass required
Formula
m = c × V × M- Definition of amount-of-substance concentration (molarity) — IUPAC Compendium of Chemical Terminology (the Gold Book), 2019
Calculated in your browser. Nothing you entered was sent anywhere.
About this tool
Calculate how much of a compound to weigh out for a target concentration and volume, or work backwards from a known mass. Solves for mass, concentration or volume using the relationship between moles, molar mass and volume.
Science last reviewed .