**Please Note: **
This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, and 2016. If you are using an earlier version (Excel 2003 or earlier), *this tip may not work for you*. For a version of this tip written specifically for earlier 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/?kbid=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.

*Note:*

If you would like to know how to use the macros described on this page (or on any other page on the *ExcelTips* sites), I've prepared a special page that includes helpful information. Click here to open that special page in a new browser tab.

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This tip (12002) applies to Microsoft Excel 2007, 2010, 2013, and 2016. You can find a version of this tip for the older menu interface of Excel here: **Summing Digits in a Value**.

**Comprehensive VBA Guide** Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out *Mastering VBA for Office 2010* today!

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2016-11-06 07:36:04

Michael (Micky) Avidan

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

--------------------------

Michael (Micky) Avidan

“Microsoft® Answers" - Wiki author & Forums Moderator

“Microsoft®” MVP – Excel (2009-2017)

ISRAEL

2016-11-05 06:46:46

Willy Vanhaelen

Function AddDigits(Number As String) As Integer

Dim i As Integer, Char As String

For i = 1 To Len(Number)

Char = Mid(Number, i, 1)

If IsNumeric(Char) Then AddDigits = AddDigits + Char

Next

End Function

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