ASC function

This article describes the formula syntax and usage of the ASC function in Microsoft Excel.


For Double-byte character set (DBCS) languages, the function changes full-width (double-byte) characters to half-width (single-byte) characters.



The ASC function syntax has the following arguments:

  • Text    Required. The text or a reference to a cell that contains the text you want to change. If text does not contain any full-width letters, text is not changed.


=ASC("EXCEL") equals "EXCEL"

=ASC(" excel excel excel excel ") equals " excel excel excel excel "

Applies To: Excel 2016 for Mac, Excel 2007, Excel 2016, Excel Starter, Excel 2010, Excel Online, Excel 2013, Excel for Mac 2011

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