Geometry & Science

Molarity Calculator

Calculate solution molarity from moles of solute and solution volume.

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How to use this molarity calculator

Enter the requested values above and select Calculate. Change the inputs to compare scenarios.

Formula and method

Molarity M = moles of solute ÷ liters of solution.

Example

0.5 mol in 2 L gives 0.25 M.

What this calculator is useful for

Calculate solution molarity from moles of solute and solution volume.

Frequently asked questions

What does this calculator do?

Calculate solution molarity from moles of solute and solution volume.

What data or formula does it use?

Uses the standard definition of molarity. Enter final solution volume, not solvent volume before mixing.

Is it free?

Yes. ERICH Calculators is free to use and no account is required.

Source & assumptions

Reference and limitation

Uses the standard definition of molarity. Enter final solution volume, not solvent volume before mixing.

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Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.