Phantom Counts

Summary: Perplexed by the ways in which the COUNT and COUNTA functions seem to count? This tip explains the differences and the "gottchas" you need to watch for. (This tip works with Microsoft Excel 97, Excel 2000, Excel 2002, Excel 2003, and Excel 2007.)

There are two closely related worksheet functions in Excel: COUNT and COUNTA. The COUNT function counts all cells that contain numbers, while the COUNTA function counts all cells that are not empty. Thus, if you use COUNTA, you would get "phantom counts" if a cell contained a space; this problem would not occur if you used the COUNT function.

What can cause "phantom counts" when using COUNT is if some cells contain the value zero. This is considered a number by Excel, so it includes that cell in the count. The confusion often pops up if you have the worksheet configured to not display zero values. Thus, the cell could appear to be empty, but really contain a zero which affects COUNT.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2574) applies to Microsoft Excel versions: 97 | 2000 | 2002 | 2003 | 2007

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Phantom Counts