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Dilution Factor from Stock Concentration and Final Volume Calculator

C₁V₁ = C₂V₂ — find final concentration or volume needed.

Compute the dilution factor and final concentration when a stock solution is diluted to a new volume: C₁V₁ = C₂V₂, so C₂ = C₁V₁/V₂ and DF = V₂/V₁. Used in biochemistry, microbiology, and analytical chemistry sample preparation.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

mol/L
mL
mL

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

C₂ = C₁·V₁/V₂; DF = V₂/V₁.

In depth

Compute the dilution factor and final concentration when a stock solution is diluted to a new volume: C₁V₁ = C₂V₂, so C₂ = C₁V₁/V₂ and DF = V₂/V₁. Used in biochemistry, microbiology, and analytical chemistry sample preparation.