Beer-Lambert Law Calculator
Calculate absorbance, transmittance, molar absorptivity, concentration, and path length using the Beer-Lambert law for spectrophotometry.
Free Analytical Calculators
4 toolsTitration, Beer-Lambert law, and analytical chemistry calculators. Browse our free analytical tools below — no sign-up required.
Calibration Curve Calculator
Build a calibration curve from standard data, perform linear regression, and determine unknown concentrations with R² and confidence intervals.
Chemical Oxygen Demand Calculator
Calculate COD from titration data, estimate organic load, convert between COD/BOD/TOC, and assess wastewater treatment requirements.
Crude Protein Calculator
Calculate crude protein content from Kjeldahl nitrogen analysis with conversion factors for different food types and feed ingredients.