Decimal to ASCII Conversion


This converter allows you to convert decimal numbers (base-10) into ASCII characters, and vice versa.

How to Use This Converter

  • Enter a decimal number (e.g., 65) to see the corresponding ASCII character
  • Or enter ASCII text to get its decimal representation

This converter supports both conversions: decimal to ASCII and ASCII to decimal.

Understanding the Conversion

Each ASCII character is represented by a number between 0 and 127. These numbers correspond to letters, digits, symbols, and control characters.

For example:

  • 65 → 'A'
  • 66 → 'B'
  • 97 → 'a'
  • 32 → (space character)

You can use our ASCII table to look up any character's decimal code.

Example

Convert the decimal values 72 101 108 108 111 to ASCII:

  • 72 → H
  • 101 → e
  • 108 → l
  • 108 → l
  • 111 → o

Result: "Hello"

Why This Is Useful

Decimal to ASCII conversions are useful when dealing with low-level data formats, communication protocols, or debugging output from devices that show ASCII values in numeric form.

This kind of conversion is common in programming, networking, and embedded systems.

More About ASCII

ASCII (American Standard Code for Information Interchange) defines 128 characters using numbers 0-127. These include:

  • Control characters (0-31 and 127)
  • Digits (48-57)
  • Uppercase letters (65-90)
  • Lowercase letters (97-122)
  • Common punctuation and symbols

Visit our ASCII table for a full reference.