Solutions & Concentrations

  • Osmotic Pressure Calculator
    Calculate osmotic pressure (Π = iMRT) from van't Hoff factor, molarity and temperature. Get results in atm, kPa and mmHg instantly.
  • DNA Concentration Calculator
    Calculate double-stranded DNA concentration in ng/µL from A260 absorbance and dilution factor using the standard 50 ng/µL conversion constant.
  • Protein Concentration Calculator
    Calculate protein concentration in mg/mL from A280 absorbance and the extinction coefficient using the Beer-Lambert law. Free, fast, and accurate.

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