Exceljet

Quick, clean, and to the point

Excel SQRT Function

Excel SQRT function
Summary 

The Excel SQRT function returns the square root of a positive number. SQRT returns an error if number is negative.

Purpose 
Find the positive square root of a number
Return value 
Positive square root
Syntax 
=SQRT (number)
Arguments 
  • number - The number to get the square root of.
Usage notes 

The SQRT function will return a #NUM error when asked to take the square root of a negative number. If you need to get the square root of a negative value (as if the value was positive) you can wrap the number in the ABS function like this:

=SQRT(ABS(A1))

Excel Formula Training

Formulas are the key to getting things done in Excel. In this accelerated training, you'll learn how to use formulas to manipulate text, work with dates and times, lookup values with VLOOKUP and INDEX & MATCH, count and sum with criteria, dynamically rank values, and create dynamic ranges. You'll also learn how to troubleshoot, trace errors, and fix problems. Instant access. See details here.