Molarity Calculator

How to calculate molarity

1. Choose what to calculate: the mass, the concentration or the volume.
2. Type the formula or the molar mass, and the two known values with their units.
3. The answer appears as you type, along with the amount in moles.

Frequently asked questions

How do I make 500 mL of 0.1 M NaCl?

Choose Mass, type NaCl, 0.1 M and 500 mL. The answer is about 2.922 g, dissolved and made up to 500 mL.