---
title: "Use the SQRT Function to Calculate the Square Root of a Number"
slug: "sqrt-function"
description: "Learn to use the SQRT function to calculate the square root of a Number in Pigment with practical examples and syntax tips."
updated: 2025-05-30T09:40:45Z
published: 2025-08-22T10:57:28Z
canonical: "kb.pigment.com/sqrt-function"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.pigment.com/llms.txt
> Use this file to discover all available pages before exploring further.

# SQRT function

## ​​​Description

Returns the square root of a Number.

## Syntax

`SQRT(Number)`

## Arguments

| Argument | Type | Dimensions | Description |
| --- | --- | --- | --- |
| *Number* (required) | Number | Any Dimensions | Number to get the square root. |

## Returns

| Type | Dimensions |
| --- | --- |
| Number | Dimensions of argument *Number* |

Returns `BLANK` if the argument *Number* is negative.

## Examples

| Formula | Result | Description |
| --- | --- | --- |
| `SQRT(16)` | 4 |  |
| `SIGN(-1)` | `BLANK` |  |

## See also

Excel: [SQRT](https://support.microsoft.com/en-us/office/sqrt-function-654975c2-05c4-4831-9a24-2c65e4040fdf)

Related articles: [POWER](/v1/docs/power-function)

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> 
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