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: Incrementing References by Multiples when Copying Formulas.

Incrementing References by Multiples when Copying Formulas

by Allen Wyatt
(last updated September 27, 2014)

Tim has a worksheet in which cell B1 contains the formula =SUM(A1:A7). He wants to copy this formula down and have the range incremented by 7 rows, so that cell B2 would contain the formula =SUM(A8:A14), cell B3 would contain =SUM(A15:A21), etc. The problem is that when he copies it down, each "end" of the range is only incremented by 1 where it should be incremented by 7 to fulfill his need. He wonders how he can make Excel do the proper incrementing.

You can't make Excel do the proper incrementing using copy and paste; it just won't do it. The reason is simple—there are times when incrementing by 1 makes sense from a formulaic perspective. Since Excel can't read your mind (at least until the next version :>)), it makes the assumption that it should only increment by 1.

The solution is to change your formula. Using a couple of worksheet functions you can have Excel construct the desired range for the summation. Consider the following example of a formula that will provide the desired sum:

=SUM(INDIRECT("A" & (ROW()-1)*7+1 & ":A" & (ROW()-1)*7+7))

If you put this formula into cell B1, it works because it takes a look at the row number (returned by the ROW function) of the row in which the formula is contained. Since it is in row 1, then the formula is evaluated in this manner by Excel:

=SUM(INDIRECT("A" & (ROW()-1)*7+1 & ":A" & (ROW()-1)*7+7))
=SUM(INDIRECT("A" & (1-1)*7+1 & ":A" & (1-1)*7+7))
=SUM(INDIRECT("A" & 0*7+1 & ":A" & 0*7+7))
=SUM(INDIRECT("A" & 0+1 & ":A" & 0+7))
=SUM(INDIRECT("A" & 1 & ":A" & 7))
=SUM(INDIRECT("A1:A7"))
=SUM(A1:A7)

What you end up with in B1 is the sum you desired. (The INDIRECT function uses the value in the string as if it was a real range, which is what you want.) When you copy the formula down the column, as the row number increments the formula provides the proper increments of 7 on both ends of the range.

There are other variations on this technique that you can use. The only difference is that the variations use different worksheet functions to accomplish the same task. For instance, the following variation still uses the ROW function, but then ultimately relies on the OFFSET function to calculate the desired range:

=SUM(OFFSET(A1,((ROW()-1)*6),0):OFFSET(A7,((ROW()-1)*6),0))

A shorter approach that uses OFFSET is as follows:

=SUM(OFFSET($A$1,ROW()*7-7,0,7,1))

Regardless of the approach, you can probably tell that the idea is to come up with a formula that uses the row in which the formula appears in order to construct the range that you really want. Each of the examples so far assumes that you are starting in cell B1. If you want to start in cell B2, then you'll need to modify the formulas to account for whatever row you are starting on. To give you just an idea of how this works, if you were starting in cell B2, instead, the three formulas presented in this tip would be modified in the following ways:

=SUM(INDIRECT("A" & (ROW()-2)*7+2 & ":A" & (ROW()-2)*7+8))
=SUM(OFFSET(A2,((ROW()-2)*6),0):OFFSET(A8,((ROW()-2)*6),0))
=SUM(OFFSET($A$2,(ROW()-1)*7-7,0,7,1))

Start at a different location, and you'll need to make further modifications to the formula you choose to use.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (8385) 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: Incrementing References by Multiples when Copying Formulas.

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

Flipping a Drawing Object

Place a drawing object in your document, and it doesn't have to stay that way. You can flip a drawing object in either of two ...

Discover More

Drop Shadows for Tables

When adding borders and shading to a document's elements, Word allows you to quickly add drop shadows to paragraphs, text ...

Discover More

Deciphering a Coded Date

It is no secret that Excel allows you to work with dates in your worksheets. Getting your information into a format that is ...

Discover More

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!

More ExcelTips (menu)

Evaluating Formulas

Need a bit of help in figuring out how Excel is evaluating a particular formula? It's easy to figure out if you use the ...

Discover More

Matching Formatting when Concatenating

Convert a numeric value to text and you may be surprised by how Excel displays the value. Here's a run-down on exactly what ...

Discover More

Returning Least-Significant Digits

Do you ever have a need to return just a few digits out of a number? This tip shows different formulas you can use to return ...

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}] 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 two more than 4?

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 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.

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.