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TOOLDENDEVELOPERON-DEVICE

Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal, live as you type. Runs entirely in your browser.

Type a number, the other bases update as you go.

Up to 253 - 1 for exact integer math. Negative numbers are preserved.

HOW TO USE

  1. 1Type a number in the value box.
  2. 2Pick the base it is written in: binary, octal, decimal or hexadecimal.
  3. 3All other bases update live as you type.
  4. 4Click any row to copy that result.

EXAMPLE

INPUT

255 in decimal

OUTPUT

Binary 11111111 · Octal 377 · Hexadecimal FF

FAQ

Which bases are supported?
Binary (2), octal (8), decimal (10) and hexadecimal (16), with live conversion between all of them.
Is my number sent anywhere?
No. All conversion happens in your browser.
Can I enter a negative number?
Yes. The negative sign is preserved across all base conversions.

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