Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal formats.
Convert from Decimal (Base 10)
What are Number Bases?
A number base (or radix) is the number of distinct digits used to represent numbers in a numeral system. The most common system used by humans is the decimal system (Base 10), which uses ten digits (0-9). In computing, other bases are frequently used due to the way hardware represents and processes data.
Common Numeral Systems in Computing
- Decimal (Base 10): The standard system for everyday life. Digits:
0-9. - Binary (Base 2): The fundamental language of computers, representing on/off states. Digits:
0-1. - Octal (Base 8): Sometimes used in computing to group binary digits into threes (e.g., file permissions in Unix). Digits:
0-7. - Hexadecimal (Base 16): Widely used in programming, web colors, and memory addresses. It groups binary digits into fours, making large binary numbers easier to read. Digits:
0-9, A-F.
How This Tool Works
This Number Base Converter runs completely in your web browser. When you enter a value, the tool validates the input against the selected base and uses JavaScript's built-in BigInt parsing to accurately convert large numbers across all four bases in real-time. Since computations are handled client-side, your data never leaves your device and the tool can be used fully offline.