SQRT or Square Root function in excel is an inbuilt arithmetic function which is used to calculate square root if a given number in excel, to use this function in excel we need to type the keyword =SQRT( and press tab button which will pop up the SQRT function for us, this function takes a single argument.

**Syntax**: **=SQRT(number)**

The SQRT function syntax has the following arguments:

**Number**(required argument) – This is the number for which we wish to find out the square root. It must be a positive number, an Excel formula, or a function that results in a positive number.

**Example**: Let’s look at some Excel SQRT function examples and explore how to use the SQRT function as a worksheet function in Microsoft Excel:

**Syntax**: =SQRT(A2)

**Result**:

Based on the Excel spreadsheet above, the following SQRT examples would return:

**Syntax**: =SQRT(A3)

**Result**: 4

**Syntax**: =SQRT(A4)

**Result**: 20

**Syntax**: =SQRT(A5)

**Result**: 30

**Syntax**: =SQRT(A6)

**Result**: 6

**Syntax**: =SQRT(A7)

**Result**: 7

**Syntax**: =SQRT(A8)

**Result**: 16

**Syntax**: =SQRT(A9)

**Result**: 12

**Syntax**: =SQRT(A10)

**Result**: 11

**Syntax**: =SQRT(A11)

**Result**: 10

**Syntax**: =SQRT(A12)

**Result**: #NUM!

**Syntax**: =SQRT(A13)

**Result**: #NUM!

**Syntax**: =SQRT(ABS(A14))

**Result**: 12

**Note**:

- SQRT in excel can accept only numbers. If you supply anything other than the numerical value we will get VALUE!
- SQRT function in excel an accepts only positive numbers. If you supply negative numbers it will return the result as #NUM!
- In order to insert the square root symbol hold the ALT key and type 251 from number keypad.