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title: round
collection: mulesoft
version: current
locale: en-us
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---
---
product: DataWeave
version: 2.9
---

# round

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

## round(number: Number): Number

Rounds a number up or down to the nearest whole number.

### Parameters

<table><colgroup><col> <col></colgroup><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td><p><code>number</code></p></td><td><p>The number to evaluate.</p></td></tr></tbody></table>

### Example

This example rounds decimal numbers to the nearest whole numbers.

#### Source

```DataWeave
%dw 2.0
output application/json
---
[ round(1.2), round(4.6), round(3.5) ]
```

#### Output

```JSON
[ 1, 5, 4 ]
```