The Molar Absorptivity Calculator allows you to determine the molar absorptivity (ε) of a solution using the Beer-Lambert law. By entering the absorbance, concentration, and path length, the tool calculates ε, which represents how strongly a substance absorbs light at a particular wavelength. This calculator is useful for chemistry students and researchers to analyze solution properties, interpret UV-Vis data, and study the interaction of light with chemical substances.