Free molarity calculator for chemistry students, lab technicians, and researchers. Solves for molarity, mass, or volume instantly. Live PubChem lookup auto-fills molar masses and densities as you type. Built-in unit conversion, Advanced Mode with thermal-expansion correction, interactive graphs, and cited worked examples. Enter any two values and get the third in seconds - ideal for buffers, dilutions, and stock solutions, with formulas straight from the IUPAC Gold Book and Vogel.
