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Calcimator

Beer-Lambert Law Calculator

Calculate concentration from absorbance using the Beer-Lambert law (A = εlc). Also computes transmittance.

Inputs

Results

Concentration

0 M

% Transmittance

31.62%

Concentration0.076 mM
Concentration75.76 µM
Transmittance (T)0.3162
How to Use This Calculator
  1. Enter Absorbance (A), Molar Absorptivity (ε), and Path Length (cm).
  2. Review Concentration (M) and % Transmittance.
  3. Use Concentration (mM) and Concentration (µM) to inform your decision.
  4. Use the chart to visualize the results and explore different scenarios by adjusting inputs.
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Formula

A = εlc → c = A / (ε × l)

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