Alphabet-Number Converter
Convert between alphabet letters and position numbers (A=1, B=2… Z=26) in both directions.
Category: Text Tools
How to use
- Select direction (Text→Numbers or Numbers→Text).
- Enter text or numbers.
- Copy the result.
Input Explanation
Enter an alphabet string (A–Z) or a space-separated list of numbers (1–26).
Calculation Basis
Substitutes each letter for its ordinal position (A=1, B=2 … Z=26) or vice versa. Non-letter characters pass through unchanged.
Usage Examples
- Cipher puzzles - Solve or create substitution cipher puzzles.
- Education - Learn alphabet order through number associations.
Examples
- Type "HELLO" to get the sequence "8 5 12 12 15"
- Enter "3 1 20" to decode the letters "CAT"
Cautions
- Only English letters (A–Z) are converted. Non-English characters, digits, and symbols are preserved as-is in the output.
FAQ
Case-sensitive?
No — A and a both equal 1. Reverse conversion lets you choose upper/lowercase.
Non-letter characters?
Spaces and special characters pass through unchanged.
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