๐ฌ Science
Molarity Calculator
Molarity is moles of solute per litre of solution, so every molarity problem reduces to converting a mass into moles first. Getting the molar mass from the formula โ not from a label โ is where most errors creep in.
How it works
Mass of solute
Molar mass
Volume of solution
Moles of solute
Millimoles
Molarity
Millimolarity
Concentration
Volume needed for a 1 M solution
Frequently asked questions
How do I use the Molarity Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.