Concentration of Solution to Molar Absorptivity (or Molar Extinction Coefficient) Calculator
Cite This in Your Publication
Concentration of Solution to Molar Absorptivity (or Molar Extinction Coefficient) Calculator - InstaNANO. https://instanano.com/all/characterization/uv-vis/molar-absorptivity/ (accessed December 27th, 2025).
Concentration of Solution to Molar Absorptivity (or Molar Extinction Coefficient) Calculator - InstaNANO. https://instanano.com/all/characterization/uv-vis/molar-absorptivity/ (accessed December 27th, 2025).
This calculator can determine the molar absorptivity or molar extinction coefficient values from concentration of solution.
Absorbance
a.u.
ConcentrationmM
Cell Lengthcm
Results
Molar AbsorptivityL/mmol·cm
Calculate the absorption coefficient without the thickness of the thin film!