Molarity Calculator

Molarity is the number of moles of solute dissolved in one litre of solution. Enter a weighed mass with its molar mass, or a number of moles, together with the final volume, and it returns the concentration in mol per litre along with the millimolar figure. Two modes run the other way, giving the mass to weigh out for a concentration and volume you want, and the stock volume for a dilution through C1 x V1 = C2 x V2. Molar mass is something you supply, because there is no periodic table behind this and it will not read a chemical formula for you.