Excel Column Number and Letter Converter
When you need to move between column numbers and letters for macros or formulas.
What you enter is never uploaded. Everything is processed on this device.
- 1Enter a number or letters
- 2See the other
- 3Check a cell too
Done
🔒 Your files are never sent to an external server. Everything is processed safely inside this browser.
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How to use
- Enter either a column number or column letters.
- The other one appears automatically.
- Enter a cell reference to see its column and row numbers.
How it works
- Excel columns go A to Z, then AA to AZ and so on, ending at XFD (column 16384).
- Cell references with dollar signs (such as $B$3) are read too.
Notes
- Rows run from 1 to 1048576 and columns from 1 to 16384.
- Lowercase letters are treated as uppercase.
FAQ
Is what I enter sent anywhere?
No. Everything is processed inside the browser on your device.
Can it be used for spreadsheets too?
Columns are counted the same way, so it works for Google Sheets as well.
If PDF Mikata was useful, a small tip would mean a lot.
Send a tip (¥300)Send a gift (Amazon wishlist)