**Please Note: **
This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), *this tip may not work for you*. For a version of this tip written specifically for later versions of Excel, click here: Summing Digits in a Value.

If you have a cell that contains a value, you may want to devise a way to add together all the digits in the value. For instance, if a cell contains the value 554, you might want to determine the sum of 5+5+4, which is 14.

There are several ways you can approach this task. (Doesn't that always seem the way in Excel?) The first is to use a formula that relies on several functions:

=SUMPRODUCT(--MID(A1,ROW(INDIRECT("1:" & LEN(A1))),1))

This regular formula will sum the digits in any integer value (in cell A1) in a simple, elegant manner. This is not the only possible formula, however. The following is an array formula (terminated by pressing **Ctrl+Shift+Enter**) version of the same formula:

=SUM(1*MID(A1,ROW(INDIRECT("1:"&LEN(A1))),1))

Either of these formulas work fine if the value in A1 is a positive whole number. If there are any non-digit characters in the number (such as a negative sign or a decimal point), then the formulas return a #VALUE! error.

These are not the only formulas possible for this type of calculation. You can find some other examples of formulas in the Microsoft Knowledge Base:

http://support.microsoft.com/kb/214053

You can also use a user-defined function to return the desired sum. The following macro steps through each digit in the referenced cell and calculates a total. This value is then returned to the user:

Function AddDigits(Number As Long) As Integer Dim i As Integer Dim Sum As Integer Dim sNumber As String sNumber = CStr(Number) For i = 1 To Len(sNumber) Sum = Sum + Mid(sNumber, i, 1) Next AddDigits = Sum End Function

To use this function, just use a formula such as =AddDigits(A1) in a cell. An even more compact user-defined function (invoked in the same manner) is the following:

Function AddDigits(ByVal N As Long) As Integer Do While N >= 1 AddDigits = AddDigits + N Mod 10 N = Int(N / 10) Loop End Function

Unlike the earlier macro, this version doesn't convert the cell contents to a string in order to process it. Instead, it steps through each digit of the value, stripping off the last digit and adding it to the total.

*ExcelTips* is your source for cost-effective Microsoft Excel training.
This tip (2424) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: **Summing Digits in a Value**.

**Create Custom Apps with VBA!** Discover how to extend the capabilities of Office 2013 (Word, Excel, PowerPoint, Outlook, and Access) with VBA programming, using it for writing macros, automating Office applications, and creating custom applications. Check out *Mastering VBA for Office 2013* today!

Want to figure out how far it is between two points on the globe? If you know the points by latitude and longitude, you can ...

Discover MoreReplacing one character in a text value with another character is easy. All you need to do is use the SUBSTITUTE function, as ...

Discover MoreIf you have a bunch of ZIP Codes or part numbers in a list, you may want to "condense" the list so that sequential series of ...

Discover More**FREE SERVICE:** Get tips like this every week in *ExcelTips,* a free productivity newsletter. Enter your address and click "Subscribe."

Got a version of Excel that uses the
menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)?
**This site is for you!** If you
use a later version of Excel, visit
our *ExcelTips* site focusing on the ribbon interface.

**FREE SERVICE:** Get tips like this every week in *ExcelTips,* a free productivity newsletter. Enter your address and click "Subscribe."

Copyright © 2017 Sharon Parq Associates, Inc.

There are currently no comments for this tip. (Be the first to leave your commentâ€”just use the simple form above!)