# Removing the Last Digit in a Number

Written by Allen Wyatt (last updated October 31, 2020)
This tip applies to Excel 2007, 2010, 2013, 2016, 2019, and Excel in Microsoft 365

Sherry has a column of numbers ranging from 13 to 15 digits long. She needs to remove just the last digit in each number and wonders how this can be easily done.

The easiest way is to use a formula to strip off the digit. The following works just fine, assuming that the original value is in cell A1:

```=LEFT(A1,LEN(A1)-1)*1
```

What is returned by the LEFT function is a string, which is why it is multiplied by 1 at the end of the formula—it converts that string value back into a numeric value.

Perhaps the shortest formula would be the following, however:

```=TRUNC(A1/10)
```

Dividing by 10, of course, is a quick way to move the decimal point one position to the left. You could use the INT function instead of TRUNC, but you should only do so if the original values are all positive numbers. (INT and TRUNC behave differently from each other when working with negative values.)

Obviously, the formulas described above require the use of a helper column. They also aren't terribly discriminating; they will remove the last digit from any value in cell A1 and they won't "adjust" if A1 contains text or is empty. If you want a bit more flexibility, you might consider using a macro:

```Sub ShortenByOne()
Dim c As Range

For Each c In Selection
If (Not c.HasFormula) And (Application.WorksheetFunction.IsNumber(c)) Then
c = Left(c, Len(c) - 1)
End If
Next c
End Sub
```

To use the macro, select the range of cells you want to affect and then run it. The values are changed to reflect the dropping of the right-most digit. Note that the macro won't make any changes in cells containing formulas or cells that don't contain numeric values. (The IsNumber worksheet function is used in preference to the IsNumeric function because IsNumeric will treat empty cells as if they are actually numeric which will crash the macro without additional testing. IsNumber doesn't exhibit that problem.)

If you want to make sure that only cells containing 13, 14, or 15 digits are modified, then you can use a variation on the above macro:

```Sub ShortenByOne()
Dim c As Range

For Each c In Selection
If (Not c.HasFormula) And (Application.WorksheetFunction.IsNumber(c)) Then
If Len(c) > 12 And Len(c) < 16 Then
c = Left(c, Len(c) - 1)
End If
End If
Next c
End Sub
```

Note that after the macro determines that the cell doesn't contain a formula and that it contains a number, then it checks to see if the length of the number is greater than 12 and less than 16. (In other words, 13, 14, or 15.) Only then does it strip off the right-most digit.

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.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (13796) applies to Microsoft Excel 2007, 2010, 2013, 2016, 2019, and Excel in Microsoft 365.

##### Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

##### MORE FROM ALLEN

Inserting a Voice Annotation in Your Document

Like to make audio notes to yourself? Word allows you to include these types of notes with your documents. Here's how to ...

Discover More

Turning Off Hyphenation for Individual Words

Word does a semi-decent job when it comes to automatically hyphenating your documents. It even lets you exclude certain ...

Discover More

Limiting Scroll Area

If you need to limit the cells that are accessible by the user of a worksheet, VBA can come to the rescue. This doesn't ...

Discover More

Professional Development Guidance! Four world-class developers offer start-to-finish guidance for building powerful, robust, and secure applications with Excel. The authors show how to consistently make the right design decisions and make the most of Excel's powerful features. Check out Professional Excel Development today!

##### More ExcelTips (ribbon)

Removing Dashes from ISBN Numbers

ISBN numbers are used to denote a unique identifier for a published book. If you remove the dashes included in an ISBN, ...

Discover More

Pulling a Phone Number with a Known First and Last Name

When using an Excel worksheet to store data (such as names and phone numbers), you may need a way to easily look up a ...

Discover More

Combining Numbers and Text in a Cell

There are times when it can be beneficial to combine both numbers and text in the same cell. This can be easily done ...

Discover More
##### Subscribe

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

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] (all 7 characters, in the sequence shown) in your comment text. Youâ€™ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 3 + 7?

2020-11-02 12:40:25

Yvan Loranger

I prefer =LEFT(A1,LEN(A1)-1)*1 over =TRUNC(A1/10)
since the first properly handles decimals as well as whole numbers in the 13-15digit samples.
Example: 111111111111.1 is properly handled by the LEFT function.
thanks

##### This Site

Got a version of Excel that uses the ribbon interface (Excel 2007 or later)? This site is for you! If you use an earlier version of Excel, visit our ExcelTips site focusing on the menu interface.