MAXScanner biology & lab calculator
Dilution Calculator — Solve Any C₁V₁=C₂V₂ Unknown
Solve any one unknown in C₁V₁=C₂V₂ and calculate diluent volume when both stock and final volumes are known. Use consistent concentration and volume units across the equation.
Last updated: 2026-09-17
Results
Leave exactly one field blank to solve it
Formula, example and assumptions
C₁V₁=C₂V₂.
To make 100 mL at 10 mM from 100 mM stock, use 10 mL stock and bring the final volume to 100 mL.
- C₁ and C₂ must represent the same concentration dimension.
- Volumes must use a consistent unit before applying the equation.
Frequently asked questions
What does C1V1=C2V2 assume?
It assumes the amount of solute is conserved during dilution and that concentration and volume units are dimensionally compatible.
How much diluent do I add?
When stock volume V1 and final volume V2 are known, diluent volume is V2−V1.