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Sqr Function

This page is specific to the Visual Basic for Applications (VBA) Language Reference for Office 2010.

Returns a Double specifying the square root of a number.



The required number argument is a Double or any valid numeric expression greater than or equal to zero.

This example uses the Sqr function to calculate the square root of a number.

Dim MySqr
MySqr = Sqr(4)    ' Returns 2.
MySqr = Sqr(23)    ' Returns 4.79583152331272.
MySqr = Sqr(0)    ' Returns 0.
MySqr = Sqr(-4)    ' Generates a run-time error.

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