Please Note: This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, 2016, 2019, and Excel in Office 365. 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: Understanding Relative and Absolute Addressing.
by Allen Wyatt
(last updated November 21, 2015)
You already know that one of the powerful features of spreadsheets is that you can refer to the contents of other cells within a formula. In Excel, cells are referred to by a combination of their column letter and row number. Thus, the cell at the intersection of column D and row 15 is known as cell D15.
When you copy a formula that contains a cell reference, Excel automatically assumes that you want the cell reference modified to reflect the cell into which you are pasting the formula. For example, suppose that the cell at B1 contains the simplest of formulas, as follows:
This simply means that B1 will contain the same value as in A1. Now suppose you copy cell B1 and paste it into B2 through B5. As Excel pastes each cell, it modifies the formula so the cell reference is the same, relative to the new location, as it was to the old. In the original formula, Excel knows that the cell being referenced was one cell to the left of the cell containing the formula. Thus, every cell into which the formula is pasted will contain a formula that has a cell reference one cell to the left of the target cell. For example, cell B2 will contain the formula =A2 and cell B5 will contain the formula =A5.
If you don't want Excel to modify the row or column designator in your cell references, then you must use absolute cell references. You designate a reference as absolute (unchangeable) by preceding it with a dollar sign ($). You can precede either the column letter or row number with the dollar sign. When you later copy and paste the formula containing the absolute reference, Excel will not modify that portion of the reference, but will paste it unchanged in the target.
Normally you use absolute referencing when you want to refer to a non-changing position in a formula. For instance, if the cell at A7 contains an interest rate and you want that interest rate referred to specifically, without it being modified by Excel, then you would use the following cell reference:
Another way to ensure that Excel does not modify your cell reference is to name the references and use the names in your formulas. Defining cell names is covered elsewhere in ExcelTips.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (12221) applies to Microsoft Excel 2007, 2010, 2013, 2016, 2019, and Excel in Office 365. You can find a version of this tip for the older menu interface of Excel here: Understanding Relative and Absolute Addressing.
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