Text System Tutorial

How to Convert Binary to ASCII Text

A step-by-step decoding manual explaining how computers translate raw binary code bytes back into readable strings.

Try it: Binary Code to Text mini-calculator

Text String Result: Hello

Decoding binary bytes.

To translate binary numbers back to standard English character text, you do the reverse of the encoding process: you parse the binary string into **8-bit bytes** (individual blocks of 8 digits), calculate their decimal numbers, and look up the corresponding character symbols. If you want to encode character text into binary instead, use our dedicated ASCII text to binary converter. If your text is encoded as hexadecimal codes, you can translate them using our hex to ASCII translator.

Worked conversion steps.

Let's decode the binary string 01001000 01100101:

  1. Separate the input into individual bytes:
    • Byte 1: 01001000
    • Byte 2: 01100101
  2. Convert Byte 1 to decimal:
    01001000 = (1 × 2⁶) + (1 × 2³) = 64 + 8 = 72
    Look up decimal 72 in the ASCII index ➔ character 'H'.
  3. Convert Byte 2 to decimal:
    01100101 = 64 + 32 + 4 + 1 = 101
    Look up decimal 101 in the ASCII index ➔ character 'e'.
  4. Concatenate the characters: "He".

Frequently Asked Questions

How do you convert binary code to text? ▼

To convert binary code to text, separate the continuous binary sequence into groups of 8 bits (each group represents one byte). Convert each byte into its decimal number, and look up that number in the ASCII character table to find the corresponding symbol or letter. Combine the characters in order to read the full text.

What character does binary 01000001 represent? ▼

The binary sequence 01000001 corresponds to decimal 65, which represents the uppercase letter "A" in the ASCII encoding standard.

What is the difference between ASCII and UTF-8? ▼

ASCII is a 7-bit character encoding system supporting 128 characters, covering English letters, numbers, and basic symbols. UTF-8 is a modern variable-width character encoding standard that can represent over a million symbols in the Unicode set, while remaining fully backward-compatible with ASCII for the first 128 indices.

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