Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal. Essential for programmers, computer science students, and anyone working with different number systems.
Number Systems Explained
Binary (Base 2): Uses only 0 and 1. The foundation of all digital computing. Each digit represents a power of 2.
Octal (Base 8): Uses digits 0-7. Sometimes used in computing for compact binary representation (each octal digit = 3 binary digits).
Decimal (Base 10): Uses digits 0-9. The standard number system we use in everyday life.
Hexadecimal (Base 16): Uses 0-9 and A-F. Widely used in programming for memory addresses, color codes, and data representation.
How to Use This Calculator
- Enter the number you want to convert
- Select the input base (binary, octal, decimal, or hexadecimal)
- Click "Convert" to see all four representations
- Results are shown in binary, octal, decimal, and hexadecimal