WorksheetFunction.Gauss (Excel)

Returns 0.5 less than the standard normal cumulative distribution.

Gauss (Arg1)

Arg1: The value for which you want the distribution.

Dim dblArg1 As Double: dblArg1 = 
Dim dblGauss As Double
dblGauss = WorksheetFunction.Gauss(Arg1:=dblArg1)