Tool Hub

Number Base Converter

2/8/10/16 radix bidirectional simultaneous conversion

How to use

  1. Enter a number in the input field and select its base: binary (2), octal (8), decimal (10), or hexadecimal (16).
  2. The other three bases update instantly as you type.
  3. Edit any output field directly to convert from that base instead.
  4. Click the copy button next to any output to copy it to your clipboard.

Examples

  • Entering 255 in decimal produces 11111111 in binary, 377 in octal, and FF in hex.
  • Entering 1A3 in hexadecimal (base 16) immediately shows 419 in decimal and 110100011 in binary.

Verify outputs before using in production. No warranty — see Terms.