Removing Duplicates at a Reduced Precision Level

Written by Allen Wyatt (last updated September 10, 2022)
This tip applies to Excel 2007, 2010, 2013, 2016, 2019, 2021, and Excel in Microsoft 365


Tanya has a worksheet that contains registration data for her company. One of the data columns indicates the results of a formula derived from equipment registration measurements. The data is precise out to 5 decimal places, though the format shows only 2 decimal places on-screen. Tanya would like to remove duplicate rows where, at 2 decimal places, the data is identical. She knows she could use the Remove Duplicates tool, but it compares out to 5 decimal places instead of just the 2 decimal places she desires. So, Tanya is searching for the easiest way to remove the duplicates.

The simplest approach is to modify the formula that shows the results in your column—simply wrap the existing formula in the ROUND function. For instance, let's say that the existing formula is very simple, such as =A1+B1. To wrap this existing formula in the ROUND function, you would change the formula to this:

=ROUND(A1+B1,2)

This rounds the results of your formula to 2 decimal places, which matches what you are displaying on-screen. You can now use the Remove Duplicates tool to get rid of the data you don't need.

If you prefer to use a helper column (so you don't modify the original formula), the formula in the helper column would be this, assuming the original five-decimal-place formula is in column D:

=ROUND(D1,2)

One you remove the duplicates based on the helper column, you could then delete the helper column as it is no longer needed.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (12972) applies to Microsoft Excel 2007, 2010, 2013, 2016, 2019, 2021, 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

Default Font for Page Numbers

Page numbers are a common addition to documents, and a great aid to readers. If you want to easily format page numbers, ...

Discover More

Changing a Toolbar Button Image

Excel allows you to modify virtually all aspects of its user interface. One of the things you can change is the images ...

Discover More

Listing Dates at Regular Intervals

Need a way to enter dates for every other Tuesday (or some other regular interval)? Excel makes it easy, providing ...

Discover More

Dive Deep into Macros! Make Excel do things you thought were impossible, discover techniques you won't find anywhere else, and create powerful automated reports. Bill Jelen and Tracy Syrstad help you instantly visualize information to make it actionable. You’ll find step-by-step instructions, real-world case studies, and 50 workbooks packed with examples and solutions. Check out Microsoft Excel 2019 VBA and Macros today!

More ExcelTips (ribbon)

Cell Address of a Maximum Value

Finding the maximum value in a range of cells is easy; finding the address of the cell containing that value is a ...

Discover More

Adding Rows without Changing a Cell Reference

Insert a row at the top of a range of cells, and the effects within your formulas may not match your expectations. This ...

Discover More

Generating Random Door Access Codes

People often use Excel to maintain lists of information that they need to track. This tip shows several ways you can ...

Discover More
Subscribe

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

View most recent newsletter.

Comments

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. You’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 five more than 7?

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


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.

Newest Tips
Subscribe

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

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.