Tool 508 · Dilution planning
Dilution Calculator
Plan a final-volume dilution, correct the common “add stock to existing diluent” problem, build exact serial dilutions, or solve any missing term in C₁V₁ = C₂V₂ — with unit conversion and pipetting checks built in.
4 workflowsFinal volume, existing diluent, serial, equation solver.
Pipetting coachFlags impractically small transfers and suggests more steps.
Exact serial prepCan retain a required working volume after onward transfer.
Unit-safeMolar, mass/volume, percent, or generic same-unit modes.
Prepare a precise final volume
Calculate stock volume and diluent needed for a target concentration and final solution volume.
Concentration system
Use the same concentration basis on both sides. For example, do not mix % w/w with % v/v unless you have converted them appropriately using density.
Target dilution
Preparation recipe
Stock added to an existing diluent volume
Why this mode exists