---
description: "Learn more about: SQRT"
title: "SQRT function (DAX) | Microsoft Docs"
---
# SQRT

[!INCLUDE[applies-to-measures-columns-tables-visual-calculations](includes/applies-to-measures-columns-tables-visual-calculations.md)]

Returns the square root of a number.  
  
## Syntax  
  
```dax
SQRT(<number>)  
```
  
### Parameters  
  
|Term|Definition|  
|--------|--------------|  
|number|The number for which you want the square root, a column that contains numbers, or an expression that evaluates to a number.|  
  
## Return value

A decimal number.  
  
## Remarks

If the number is negative, the SQRT function returns an error.  
  
## Example

The following formula,  
  
```dax
= SQRT(25)  
```
  
## Related content

[Math and Trig functions](math-and-trig-functions-dax.md)  
