LETTERS
Enter letters or text
NUMBERS
Converted numbers
How It Works
Type any word, phrase, or sentence into the input box.
Choose the conversion style you want (A1Z26, A0Z25, ASCII, Hex ASCII, or Binary).
Click convert to generate instant output.
Use the result for learning, coding, puzzles, or quick reference.
Practical Use Cases
Secret Codes
Create simple encoded messages by converting letters into numbers for private notes and fun challenges.
Learning Encoding Systems
Understand how text to number and ASCII converter logic works with clear, readable outputs.
Developer Workflows
Quickly check character values in decimal, hex, or binary while testing scripts and data transformations.
Puzzle Solving
Decode clue-based puzzles that use alphabet to number patterns and letter indexing systems.
Why Use This Tool
Manual Conversion Guide
If you prefer doing it yourself, this quick guide shows how letters to numbers conversion works step by step.
Quick Example
"HELLO"
ASCII Converter Chart
Quick reference guide showing standard ASCII decimal values for common character types.
| Character | Type | ASCII (Decimal) |
|---|---|---|
| A | Uppercase Letter | 65 |
| a | Lowercase Letter | 97 |
| 0 | Number | 48 |
| ⎵ | (space) Whitespace | 32 |
| ! | Symbol | 33 |