Convert UTF8 to Arbitrary Base

What Is UTF-8 to Arbitrary Base Converter?

Our UTF-8 to Arbitrary Base Converter is a free online tool that transforms any UTF-8 encoded text into numeric values using your chosen number base. Whether you need binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), or any base up to base 36, this tool handles the full Unicode character set including emojis, special symbols, and international characters.

How to Use the UTF-8 to Arbitrary Base Converter

1. Select a Base: Choose your target base from the dropdown (2 to 36).
2. Enter Your Text: Type or paste any UTF-8 text in the input area.
3. Configure Output: Toggle the space separator option to add spaces between values.
4. View Results: The converted values appear instantly with a detailed character breakdown table.

Understanding UTF-8 and Number Bases

UTF-8 is a variable-width character encoding that can represent every character in the Unicode standard. Each character is assigned a unique code point — a numeric identifier. This converter takes each character's code point and expresses it in your chosen number base.

For example, the letter A has a code point of 65 in decimal. In different bases, this becomes:

• Binary (base 2): 1000001
• Octal (base 8): 101
• Decimal (base 10): 65
• Hexadecimal (base 16): 41

Emojis and complex characters have larger code points. The earth emoji 🌍 has code point 127757 (decimal), which becomes 1F30D in hexadecimal.