---
schema_version: "1"
id: 5efdce5c705381791beb4d68168a58602446aa87f1bd5b31a5e356e71188c9c1
title: fromHex
collection: mulesoft
version: current
locale: en-us
portal_url: https://docs.salesforce.com/mulesoft/current/en-us/dataweave/2.6/dw-numbers-functions-fromhex.md
canonical_url: https://docs.mulesoft.com/dataweave/2.6/dw-numbers-functions-fromhex
source_site: docs.mulesoft.com
content_type: documentation
content_hash: 4584349ee4ccee2030e9a15ae4ee9bc280ba36462376d54a71e205cf3fb99002
description: MuleSoft Documentation Site
release: "2.6"
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---
---
product: DataWeave
version: 2.6
---

# fromHex

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

## fromHex(hexText: String): Number

Transforms a hexadecimal number into decimal number.

_Introduced in DataWeave version 2.2.0._

### Parameters

<table><colgroup><col> <col></colgroup><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td><p><code>hexText</code></p></td><td><p>The hexadecimal number represented in a <code>String</code>.</p></td></tr></tbody></table>

### Example

This example shows how the `toBinary` behaves with different inputs.

#### Source

```DataWeave
%dw 2.0
import fromHex from dw::core::Numbers
output application/json
---
{
    a: fromHex("-1"),
    b: fromHex("3e3aeb4ae1383562f4b82261d969f7ac94ca4000000000000000"),
    c: fromHex(0),
    d: fromHex(null),
    e: fromHex("f"),
}
```

#### Output

```JSON
{
  "a": -1,
  "b": 100000000000000000000000000000000000000000000000000000000000000,
  "c": 0,
  "d": null,
  "e": 15
}
```

## fromHex(hexText: Null): Null

Helper function that enables `fromHex` to work with null value.

_Introduced in DataWeave version 2.2.0._