Excel Column Number to Letter

Get instantly the letter corresponding to a column number (1=A, 26=Z, 27=AA...).

Column letter: ?

Example: 16384 corresponds to column XFD (last column)

Excel column number ? is ?

Recent History

    How It Works

    Excel numbers its columns sequentially: column 1 is A, column 26 is Z, column 27 is AA, column 28 is AB, and so on. This tool performs the reverse conversion — from number to letter — using the same base-26 system.

    This is particularly useful when working with functions like ADDRESS or INDIRECT, or when writing VBA code that iterates over columns using numeric indexes and needs to reference them by letter.

    The tool supports all valid Excel columns from 1 (A) to 16384 (XFD).