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 August 13th, 2025).
Concentration of Solution to Molar Absorptivity (or Molar Extinction Coefficient) Calculator - InstaNANO. https://instanano.com/all/characterization/uv-vis/molar-absorptivity/ (accessed August 13th, 2025).
This calculator can determine the molar absorptivity or molar extinction coefficient values from concentration of solution.
Absorbance
a.u.
Concentration
mM
Cell Length
cm
Results
Molar Absorptivity
L/mmol·cm
Calculate the absorption coefficient without the thickness of the thin film!