Beer–Lambert Law

Calculate absorbance, concentration, molar absorptivity, and path length.

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Beer-Lambert Law Calculator

A = εbc

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L·mol⁻¹·cm⁻¹

cm

Beer-Lambert Law

This law states that the absorbance of light by a solution is directly proportional to its concentration. A = εbc, where A is absorbance (unitless), ε is the molar absorptivity, b is the path length, and c is the concentration.