Peptide Molecular Weight Calculator

Paste an amino acid sequence to get the average molecular weight in g/mol, plus how many nanomoles are in each milligram.

Inputs

Result

Formula used

Molecular weight (g/mol) = Sum of average residue masses + 18.015 (water)
nmol per mg = 1,000,000 / Molecular weight
nmol in a dose = Dose (mcg) x 1,000 / Molecular weight