Dilution Calculator

Find how much stock solution and solvent to mix for a dilution, or any missing value in C₁V₁ = C₂V₂.

What Do You Want to Find?
Fractions and decimals both work.
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Result
Solvent to add
Dilution factor
Work

Saved Calculations

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The Dilution Equation

C₁V₁ = C₂V₂

The amount of solute doesn’t change when you add solvent, so concentration × volume stays the same. Use any units, as long as both concentrations and both volumes match.

Worked Example

Tips

For acids, add acid to water, not water to acid. Serial dilutions repeat the same factor several times.