Extract Number From Text String

Got any Excel/VBA Questions? Free Excel Help

Get Numbers From Alphanumeric Text in Excel

This UDF will extract the numeric portion from a alphanumeric Text String.

The Code

Function ExtractNumber(rCell As Range, _
     Optional Take_decimal As Boolean, Optional Take_negative As Boolean) As Double

    

Dim iCount As Integer, i As Integer, iLoop As Integer

    Dim sText As String, strNeg As String, strDec As String

    Dim lNum As String

    Dim vVal, vVal2

     

     ''''''''''''''''''''''''''''''''''''''''''

     'Written by OzGrid Business Applications

     'www.ozgrid.com

     

     'Extracts a number from a cell containing text and numbers.

     ''''''''''''''''''''''''''''''''''''''''''

    sText = rCell

    If Take_decimal = True And Take_negative = True Then

        strNeg = "-" 'Negative Sign MUST be before 1st number.

        strDec = "."

    ElseIf Take_decimal = True And Take_negative = False Then

        strNeg = vbNullString

        strDec = "."

    ElseIf Take_decimal = False And Take_negative = True Then

        strNeg = "-"

        strDec = vbNullString

    End If

    iLoop = Len(sText)

        

            For iCount = iLoop To 1 Step -1

            vVal = Mid(sText, iCount, 1)

            

    

                If IsNumeric(vVal) Or vVal = strNeg Or vVal = strDec Then

                    i = i + 1

                    lNum = Mid(sText, iCount, 1) & lNum

                        If IsNumeric(lNum) Then

                            If CDbl(lNum) < 0 Then Exit For

                        Else

                          lNum = Replace(lNum, Left(lNum, 1), "", , 1)

                        End If

                End If

                 

                If i = 1 And lNum <> vbNullString Then lNum = CDbl(Mid(lNum, 1, 1))

            Next iCount

        

     

    ExtractNumber = CDbl(lNum)

     

End Function

To use this UDF push Alt+F11 and go Insert>Module and paste in the code. Push Alt+Q and save. The Function will appear under "User Defined" in the Paste Function (Shift+F3).

It should be noted that the ExtractNumber Function has 2 optional arguments (Take_decimal and Take_negative). These are both False if omitted. See the table below to see how alphanumeric text is treated.

Alphanumeric Text	Formula	Result
a-bg-12909-	=ExtractNumber(A1,,TRUE)	-12909
a-bg-12909-	=ExtractNumber(A2)	12909
a.a1.2...	=ExtractNumber(A3,TRUE)	1.2
a.a1.2...	=ExtractNumber(A4)	12
a.a-1.2….	=ExtractNumber(A5,TRUE,TRUE)	-1.2
abg1290.11	=ExtractNumber(A6,TRUE)	1290.11
abg129013Agt	=ExtractNumber(A7)	129013
abg129012	=ExtractNumber(A8)	129013