Research use only. Not for human or veterinary use.
Open all calculators →Research Tools / Dilution

Understand dilution math.

Use the standard C₁V₁ = C₂V₂ relationship to calculate final volume and diluent volume.

Laboratory arithmetic only. Use consistent concentration units. This result does not replace a validated laboratory method or safety review.

How to use this tool

  1. Describe the stockEnter its concentration and the stock volume used in the calculation.
  2. Set the targetChoose a concentration no higher than the stock.
  3. Read both volumesFinal volume includes the stock; the difference is theoretical diluent.

01 Enter your values

Fictional arithmetic example

10 mg/mL stock × 2 mL ÷ 2 mg/mL target = 10 mL final volume; difference = 8 mL.

For understanding the math, not product values or recommendations.
Concentration of the starting solution (C₁).
Volume of stock represented in this calculation (V₁).
Desired final concentration (C₂); must not exceed stock.