# How to Calculate Square Root in Excel (Easy 2-Step Guide)

In this article, you will learn to use the square root function in Excel in two simple steps.

## Understanding the SQRT function in Excel

The **“=SQRT(number)”** formula in Excel calculates the square root of the selected number. For example, if you want to find the square root of the number 16, you can use the formula "=SQRT(16)", which will return the value 4.

## When is the SQRT formula helpful in Excel?

The SQRT formula can be used in many different scenarios in Excel, such as when you need to calculate the standard deviation of a data set or when you need to find the length of the hypotenuse of a right angled triangle. Additionally, the SQRT formula can be used in combination with other functions in Excel to perform more complex calculations.

## How to use the Square Root formula in Excel?

**Step 1:** Click on the cell where you want to calculate the value

**Step 2:** Type **“=SQRT”** -> click the formula name in the formula prompt -> select the cell which contains the number -> press **“Enter”** key

For example: 4 is the value in cell A5. To calculate the square root of 4, you will use **“=SQRT(A5)”** as shown in the image below.

**Note**: If the numeric value input is less than zero, the formula returns #NUM! error value.

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You can learn about other Excel and Google Sheets formulas and tips that are not mentioned here on this page: LiveFlow‘s How to Guides