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Excel Column Letter to Number Converter

Convert an Excel column letter to a number and back. A=1, Z=26, AA=27, XFD=16384. Plus A1 to R1C1 translation and a range expander. Runs in your browser.

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How to use this tool

  1. Enter or select your input.
  2. Run the tool and review the result.
  3. Copy or download the output when available.

About this tool

Convert an Excel column letter to a number and back. A=1, Z=26, AA=27, XFD=16384. Plus A1 to R1C1 translation and a range expander. Runs in your browser.

Frequently asked questions

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This tool processes input in your browser. Files and text are not sent to our server by this page.

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