Peptide tools

Browser-based calculators with their formulas and limitations shown. They perform arithmetic only and contain no dosing information.

• Peptide sequence calculator

  Length, average molecular weight, theoretical pI, net charge at pH 7.4, and GRAVY from a one-letter sequence.

• Peptide unit converter

  Convert between g, mg, mcg, and ng. IU only with a substance-specific factor you enter.

• Reconstitution (concentration) calculator

  Concentration in mg/mL and mcg/mL from an amount and a volume. Math only.