# Used value

The final value after layout, like 50% turned into pixels.

## What is a **used value**?

The **used value** is the final number after layout, like the real pixel width of a `50%` box.

```css
.half { width: 50%; }   /* used value: 480px inside a 960px parent */
```

Level: Master · [More CSS terms at this level](https://www.ask-codey.com/glossary/subjects/css/master)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/used-value