Number Base Converter

Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36. All fields update live as you type.

Binary (2)

Octal (8)

Decimal (10)

Hex (16)

Base (2-36)

Value

Features

Base 2-36 conversion

Real-time sync

Large number support

1. Type a number into any of the base fields (binary, decimal, hex, etc.).

2. All other bases update automatically.

3. Click any value to copy it.

What are number bases?

Number bases define how many digits are used in a numeral system. Binary uses 2, decimal uses 10, hexadecimal uses 16.