# How to Write Permille (‰) Symbol in LaTeX

**To write permile symbol (‰) in LaTeX, use the LaTeX command \permil available in the package wasysym. It will add ‰ symbol in the text.**

The permille symbol (‰) is commonly used in various fields for expressing small proportions or ratios such as interest rates of fees in financial transactions.

In this article, we will discuss how to type permille symbol (‰) in the LaTeX document and their significance in the mathematical expressions and scientific disciplines.

## Symbol Overview

**Symbol:** Permille Symbol

**Unicode:** U+2030

**Type:** Mathematical

**Package Requirement:** wasysym

**Argument:** None (no additional arguments needed)

**LaTeX Command:** \permil

**Example:** ‰

## Syntax

To type the permille symbol (‰) in LaTeX, use the package `wasysym`

that provides the command `\permil`

or you can use package `textcomp`

to use its command `\textperthousand`

.

```
\permil
```

or

```
\textperthousand
```

## Examples of Writing the Permille Symbol

Let’s explore some of the practical examples of using the LaTeX command to write the permille symbol.

### Write the Permille Symbol in Text using Package wasysym

```
\documentclass{article}
\usepackage{wasysym}
\begin{document}
The concentration of a H2 in the solution is 1.5\permil.
\end{document}
```

Output: 👇️

The concentration of a H2 in the solution is 1.5‰.

Here, in the above example, it uses the package `wasysym`

to use the LaTeX command \permil to insert ‰ symbol in the text.

### Write the Permille Symbol in Text using Package textcomp

```
\documentclass{article}
\usepackage{textcomp}
\begin{document}
The concentration of a H2 in the solution is 1.5\textperthousand.
\end{document}
```

Output: 👇️

The concentration of a particular substance in the solution is 1.5‰.

Here, in the above example, it uses the package `textcomp`

to use the LaTeX command \textperthousand to insert ‰ symbol in the text.

## Conclusion

The permille symbol is commonly used in the various fields to express the small proportions or ratios, parts per thousand such as, to indicate the concentration of substance in solutions, represent error margins in measurements.