Math · Dev

Number Base Converter

Type a number in any base — decimal, hex, binary, or octal — and all other fields update instantly. Nothing sent anywhere.

01 Convert

Decimal Base 10

Hexadecimal Base 16

Binary Base 2

Octal Base 8

Bit width

Pads hex and binary with leading zeros to fit the selected width.

Display

Show base prefixes (0x 0b 0o) Group binary into nibbles (every 4 bits) Uppercase hex digits (A–F)