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Letters to Numbers Converter

Convert letters to numbers with the A1Z26 cipher (A=1 … Z=26).

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How do you convert letters to numbers?

Type any text and each letter comes back as its alphabet position: A or a is 1, Z or z is 26. “Code” encodes to 3 15 4 5. The converter is case-insensitive, drops digits, spaces and punctuation, and prints the positions space-separated so they paste cleanly into the matching decoder.

How to use the Letters to Numbers

  1. 1 Type the word or phrase to encode.
  2. 2 Every letter converts to its position, A=1 through Z=26.
  3. 3 Non-letters are dropped from the number list automatically.
  4. 4 Copy the space-separated numbers from the output.

What you can use it for

  • Encoding words as A1Z26 puzzles.
  • Writing number-coded clues for treasure hunts.
  • Teaching alphabet positions with live examples.
  • Producing numeric codes from short text.

Frequently asked questions

How are letters turned into numbers?
“Hi there” becomes 8 9 20 8 5 18 5. Upper and lower case share the same position, so H and h both encode as 8.
What happens to spaces, digits and punctuation?
They are stripped before encoding. Word boundaries are not preserved, so if you need them, encode one word at a time.
How do I decode the numbers later?
Feed the output to the Numbers to Letters converter. Because both tools use the same A1Z26 mapping, the round trip returns your original letters.

Related tools

Numbers to Letters Convert numbers to letters with the A1Z26 cipher (1=A … 26=Z). Replace Letters With Numbers Turn text into leetspeak by swapping letters for look-alike numbers. Words to Symbols Convert words to symbols with look-alike leetspeak characters.

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