---
title: "Average mass: research glossary | Sable Peptides"
description: "Average mass is the mass of a molecule calculated from the natural isotopic abundance of each element. It is used for molar calculations and is the value r"
canonical: https://www.sablepeptides.co.uk/glossary/average-mass
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Average mass

Average mass is the mass of a molecule calculated from the natural isotopic abundance of each element. It is used for molar calculations and is the value reported in many databases. For larger peptides, the most intense mass spectral peak is not the monoisotopic peak, and the isotope envelope centroid approximates the average mass.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Molecular_mass)

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