---
title: "Discussion on \"Building a Peptide Monoisotopic and Average Mass Calculator in Python\" | Hashnode"
description: "Discussion on \"Building a Peptide Monoisotopic and Average Mass Calculator in Python\". Compute peptide monoisotopic mass, average mass and ESI m/z from first principles in Python, then cross-check against the open-source peptide-mass package."
url: "https://hashnode.com/posts/building-a-peptide-monoisotopic-and-average-mass-calculator-in-python/6ad0a993b39eac34f101a4ff"
---

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# [Building a Peptide Monoisotopic and Average Mass Calculator in Python](https://peptideexpress.hashnode.dev/building-a-peptide-monoisotopic-and-average-mass-calculator-in-python?utm_source=hashnode&utm_medium=feed)

Compute peptide monoisotopic mass, average mass and ESI m/z from first principles in Python, then cross-check against the open-source peptide-mass package.

Oct 15 · 7 min read · peptideexpress.hashnode.dev  
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-   [#bioinformatics](https://hashnode.com/tag/bioinformatics)
-   [#opensource](https://hashnode.com/tag/opensource)

## Written by

[Peptide.Express](https://hashnode.com/@peptideexpress)

@peptideexpress

  
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Open peptide mass reference data and tools. For laboratory research use only. Not for human or veterinary use.

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