Converter Tool
ASCII Converter
Convert text to ASCII decimal, hexadecimal, binary, and Base64. Decode decimal, hex, binary, or Base64 back to readable text with a live character table and copy-ready results.
Decimal: 72 101 108 108 111 · Hex: 48 65 6C 6C 6F
ASCII translator
Convert ASCII text, decimal, hex, binary, and Base64
Your converted results appear below.
ASCII Decimal
Hexadecimal
Binary
Base64
ASCII Code Chart
Decimal value of each character in your input.
Character conversion table
| # | Character | Decimal | Hex | Binary |
|---|
How it works
What this ASCII converter does
This ASCII converter turns normal text into decimal ASCII codes, hex bytes, binary bytes, and Base64. It can also decode decimal, hexadecimal, binary, and Base64 input back into readable text.
It is useful for computer science, programming, networking, debugging, encoding practice, cybersecurity basics, and learning how characters are represented inside computers.
Formula
ASCII conversion method
1. Text to decimal
Each character is represented by a numeric code. For example, A is 65.
Character → ASCII decimal code 2. Decimal to binary
Decimal ASCII codes can be converted to binary, usually padded to 8 bits.
65 → 01000001 3. Decimal to hex
Decimal ASCII codes can also be shown as hexadecimal bytes.
65 → 41 Learn related number conversions
More tools for binary, decimal, and number conversion
ASCII conversion is closely connected to number systems. When a letter is converted to ASCII, the decimal code can also be written in binary. To learn that step in detail, try the Decimal to Binary Converter, which shows the division-by-2 method. If you are working with decimal values in a different math context, the Decimal to Fraction Calculator can help you turn decimal numbers into simplified fractions and mixed numbers.
Examples
ASCII converter examples
Example 1: Text to decimal
The text Hello becomes 72 101 108 108 111 in decimal ASCII.
Example 2: Hex to text
The hex values 48 65 6C 6C 6F convert back to Hello.
Example 3: Binary to text
The binary value 01000001 equals decimal 65, which represents the letter A.
Guide
How to use this ASCII converter
- Choose input type. Select text, decimal, hex, binary, or Base64.
- Paste your value. Enter text or separated number codes.
- Select separator. Choose space, comma, new line, or no separator.
- Convert. View decoded text, decimal, hex, binary, Base64, and table output.
- Copy result. Use the copy buttons for quick programming or study use.
FAQ
ASCII Converter FAQ
What is an ASCII converter?
An ASCII converter changes text into ASCII codes or converts ASCII decimal, hexadecimal, binary, or Base64 values back into readable text.
What does ASCII stand for?
ASCII stands for American Standard Code for Information Interchange. It is a character encoding system that represents letters, digits, punctuation, and control characters as numbers.
How do I convert text to ASCII decimal?
Each character has a decimal code. For example, uppercase A is 65, lowercase a is 97, and space is 32.
How do I convert ASCII to binary?
First find the decimal ASCII code for each character, then convert each decimal number to 8-bit binary. For example, A is decimal 65, which is binary 01000001.
Does this tool support Unicode?
This tool is mainly designed for ASCII-style conversion. It can show character codes for many typed characters, but extended Unicode characters may be outside the standard 0–127 ASCII range.