Math & Trig
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=SQRT()
Returns a positive square root.
Applies To:
Excel for Microsoft 365Excel for Microsoft 365 for MacExcel 2024Excel 2024 for MacExcel 2021Excel 2021 for MacExcel 2019Excel 2016
=SQRT(number)
Hover argument names in the table for details.
Output typeNumber
Popularity40 / 100
VolatileNo
Dynamic ArrayNo
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◧ Arguments
| Argument | Type | Required | Description |
|---|---|---|---|
number |
Number | Required | The number for which you want the square root. |
▣ Examples
▦ Data
| Cell | Value |
|---|---|
A2 |
-16 |
A3 |
-16 |
Square root of 16.
=SQRT(16)
Result:
4
Square root of -16. Because the number is negative, the #NUM! error message is returned.
=SQRT(A2)
Result:
#NUM!
Avoiding the #NUM! error message by first using the ABS function to find the absolute value of -16 and then finding the square root.
=SQRT(ABS(A2))
Result:
4
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