Binary / Number Base Converter

Type in any field — binary, octal, decimal, or hex — and all others update instantly.

Binary Base 2

Octal Base 8

Decimal Base 10

Hexadecimal Base 16

Binary Visualization

Enter a number above to see its bit representation.

ASCII Character: |

Custom Base Converter

Convert a number from any base (2–36) to any other base.

Input Number

From Base

To Base

Result

How to use

Type any number in the Binary, Octal, Decimal, or Hex field — all four update simultaneously
The bit visualization shows the binary representation grouped in nibbles (4 bits each)
Bit info shows how many bits are needed, and the signed/unsigned range for that bit width
If the decimal value is 32–126, the ASCII character is shown below the visualization
The Custom Base Converter supports any base from 2 to 36 (uses 0–9 and A–Z)
Hex input is case-insensitive