🔄Express Converter
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Number Base Converter

Convert between binary, octal, decimal, and hexadecimal

Example: 42

Binary

Base 2

0b101010

Octal

Base 8

0o52

Decimal

Base 10

42

Hexadecimal

Base 16

0x2A

Number Base Converter Tips:

  • Binary uses only 0 and 1 (base 2)
  • Octal uses digits 0-7 (base 8)
  • Decimal uses digits 0-9 (base 10)
  • Hexadecimal uses 0-9 and A-F (base 16)