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Number Base Converter
A free online number base converter. Type in any field — Decimal, Binary (Base 2), Hexadecimal (Base 16), or Octal (Base 8) — and all other bases update instantly. Also shows 8-bit and 16-bit binary representations, and displays a color preview for valid hex color codes. Essential tool for developers and CS students.
Base 10
0b
0o
0x
Bit Representations
8-bit
11111111
Bit positions: 7 6 5 4 3 2 1 0
16-bit
0000000011111111
Decimal
255
Binary
0b11111111
Octal
0o377
Hex
0xFF
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