Molarity Calculator
Convert a measured solute mass into amount of substance and divide by final solution volume to estimate molar concentration.
Moles of solute0.1 mol
Molarity0.1 mol/L
How this tool works
Moles = mass ÷ molar mass. Molarity M = moles ÷ liters of solution.
Example
5.844 g of NaCl with molar mass 58.44 g/mol is 0.1000 mol; in 1 L final solution that is 0.1000 M.
Common questions
Should volume be solvent volume or final solution volume?
Molarity uses the final total solution volume, not simply the starting solvent volume.
Does the calculator determine molar mass from a chemical formula?
No. Enter the compound's molar mass from a trusted reference or a separate chemistry calculation.