Number Base Converter
Convert between binary, decimal, hex, octal
Calculators
Instant results
0b
0o
0x
Quick Examples
About Number Base Conversion
Binary (Base 2): Uses only 0 and 1. Used in computing.
Octal (Base 8): Uses digits 0-7. Used in Unix file permissions.
Decimal (Base 10): Standard number system using 0-9.
Hexadecimal (Base 16): Uses 0-9 and A-F. Used in colors, memory addresses.