Dilution Calculator C1·V1 = C2·V2

Calculate dilutions using C1·V1 = C2·V2. Input with decimal comma, clear result display, and optional serial dilution.

Which variable to calculate?

C1 (Stock Solution)

–

V1 (Volume Stock Solution)

C2 (Target Concentration)

–

V2 (Final Volume)

Purity of Stock Solution (%)

Effective C1 = C1 × (Purity / 100). Default: 100 %.

V1 Warning Threshold (µL)

Hint for very small volumes, e.g., < 2 µL.

Result

Please enter values…

Advanced: Serial Dilution & Export

Tips for Precise Pipetting

Avoid very small V1 (< warning threshold) → Serial dilution (e.g., 1:100 → 1:10).
% w/v: 1 % = 1 g per 100 mL = 10 g/L.
Do not mix unit families: Molarity ↔︎ Molarity or Mass/Volume ↔︎ Mass/Volume.
Purity below 100 % reduces effective stock solution concentration.

Disclaimer: For educational/planning purposes only – local SOPs/QA take precedence.

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