---
title: "Relative standard deviation: research glossary | Sable Peptides"
description: "Relative standard deviation (RSD), also called the coefficient of variation, is the standard deviation divided by the mean, usually expressed as a percenta"
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publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Relative standard deviation

Relative standard deviation (RSD), also called the coefficient of variation, is the standard deviation divided by the mean, usually expressed as a percentage. It allows comparison of variability between datasets with different magnitudes and is a standard metric for precision in analytical methods such as HPLC.

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

## Related terms

-   [Precision](/glossary/precision)
-   [Standard deviation](/glossary/standard-deviation)

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