---
title: How do I calculate G force?
description: "Most users of centrifuges will want to know what G force (also known as RCF) is being exerted onto the sample. This can be calculated as follows: ``` RCF= radius (cm) x 11.18 x (rpm/1000)² ``` Alternatively, you can use…"
url: "https://henderson-biomedical.co.uk/frequently-asked-questions/how-do-i-calculate-g-force/"
updated: "2024-04-29"
category: Centrifuges
---

# How do I calculate G force?

Most users of centrifuges will want to know what G force (also known as RCF) is being exerted onto the sample. This can be calculated as follows:

```
RCF= radius (cm) x 11.18 x (rpm/1000)²
```

Alternatively, you can use our online calculator [here](https://henderson-biomedical.co.uk/rcf-calculator/).