Shopping Cart (Login required)
peptide mass calculator banner

Here's an Online Mass Calculator for Peptides

28 February 2017

Biotage has developed a simple peptide mass calculator to work out the mass of your peptide sequence.


Sequences are built by simply clicking or typing in amino acids using either one- or three letter codes. N- and C-terminii are selected from dropdowns, and oxidized cysteines and cyclic peptide options can be selected for the mass calculation. The results are displayed as the peptide sequence together with the average and monoisotopic weight of the sequence.

Try it out here »

 Biotage peptide mass calculator