Calculated result
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C1V1 = C2V2
Concentrations normalize to M and volumes to liters before solving V1, C2, V2, or C1. Same-unit mode supports ratios such as percent only when both concentrations use that same unit.
Dilution boundary
Stock volume cannot exceed final volume, and basic dilution cannot increase concentration. Diluent volume is V2 − V1. This tool provides arithmetic, not chemical compatibility, mixing order, safety, or medication guidance.
Worked example
The editable example values above demonstrate the formula and expose each conversion or parsing assumption used in the result.