Dilution Calculator

For a dilution where the amount of solute is conserved, C₁V₁ = C₂V₂. Choose the unknown quantity and enter the other three. Concentrations can be entered in M, mM or µM and volumes in L, mL or µL; the unit conversions are handled before the equation is solved.

This relation applies to dilution by adding solvent without reaction, precipitation, evaporation or loss of solute. It is a concentration calculation, not a substitute for deciding whether a proposed preparation is chemically possible or safe.