Molarity Calculator

Calculate molarity, mass, volume, or perform dilution calculations for chemical solutions.

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g
Mass of dissolved substance in grams.
g/mol
Molecular weight of the solute.
L
Volume of the solution in liters.
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Molarity
mol/L (M)
Common Reagents
Documentation

How It Works

Molarity is the most common way to express the concentration of a solution in chemistry. It is defined as the number of moles of solute per liter of solution.

The dilution equation C₁V₁ = C₂V₂ is used to calculate how much stock solution (or solvent) is needed to prepare a diluted solution of a desired concentration.

Formulas

Last Updated: February 28, 2026

Disclaimer: For educational purposes only. Always follow laboratory safety protocols when handling chemicals.

Frequently Asked Questions
How to Use

About the Molarity Calculator

What it calculates

Calculate molarity, mass, volume, and dilutions. Enter your values above to get instant results from this free online molarity calculator.

When to use it

Use whenever you need a fast, reliable estimate without manual spreadsheet work.

Example

Adjust the inputs above to model your specific scenario with the Molarity Calculator.

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