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Calcimator

Protein Concentration Calculator

Protein quantification from Bradford/BCA assay data using Beer-Lambert Law (A = εlc).

Inputs

Results

Concentration (mg/mL)

0

Concentration (µg/mL)0.76
Concentration (µM)11.41
Concentration (M)0
Total protein (mg)0
A280-based conc. (mg/mL)0
How to Use This Calculator
  1. Enter the absorbance reading from your spectrophotometer and the molar extinction coefficient (ε).
  2. Set path length (cm), molecular weight (Da), dilution factor, and sample volume (mL).
  3. Review Concentration in mg/mL, µg/mL, and µM.
  4. Use Total Protein (mg) to calculate yield across the full sample volume.
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