Stock Solution Planner
Plan a working dilution from a stock solution. Calculates stock volume, diluent volume, and bench-ready instructions with pipette-accuracy warnings.
Bench setup
Enter your stock concentration, the target (working) concentration, and how much working solution you need. The calculator uses C₁V₁ = C₂V₂ and tells you exactly how much stock to pipette and how much diluent to add.
Assumptions
- Stock is fully dissolved and accurately labeled.
- Diluent volume = final volume − stock volume (volumes are additive).
- Verify pipette accuracy for any volume below 1 µL.
Your pipetting plan will appear here
V₁ = (C₂ × V₂) / C₁Formula reference
Stock volume:
V₁ = (C₂ × V₂) / C₁Diluent:
V_diluent = V₂ − V₁