Unit Converters · Free tool
Molarity Calculator
Calculate molarity, mass, or volume of any solution using M = moles/liters. Built for lab prep and stoichiometry homework. Free, instant, no sign-up needed.
Molarity
0.1001 M (mol/L)
Moles of solute: 0.10010 mol
Need molar mass for a formula? Use the molar mass calculator. For C₁V₁ = C₂V₂ work, use the dilution calculator.
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What it does
Switch between solving for molarity, mass, or volume. M = moles / liters where moles = mass / molar_mass. Useful for making solutions in the lab and for solution-stoichiometry problem sets.
For an unknown molar mass, use the molar mass calculator first. For diluting a stock to a working concentration, use the dilution calculator.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/molarity-calculator" width="100%" height="720" frameborder="0" loading="lazy" title="Molarity Calculator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Pick what you're solving for (molarity / mass / volume).
- Enter the three known values.
- Read the answer + the moles of solute it implies.
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