Column AZ
Input
AZ
Output
52
Excel Column Letter & Number Converter
Enter a column letter, number, or range such as B:AZ.
Developer tools
Loading tool
What it helps with
- Read a spreadsheet API column index
- Build a formula or import mapping
- Count columns in a wide range
How to use
- Enter letters, a number, or a column range.
- Review the automatic conversion.
- Copy the result for a formula, script, or mapping.
Examples
Range B:AZ
Input
B:AZ
Output
51 columns
Good to know
- Only column references are supported; cell addresses, sheet names, and formulas are not parsed.
FAQ
- Why is XFD the maximum?
- Modern Excel worksheets have 16,384 columns, ending at XFD.
- Does B:AZ include both ends?
- Yes. Range counts are inclusive.