🔢 Number Tools

Binary to Decimal / Hex Converter

Convert binary to decimal, hexadecimal and octal. Convert decimal to binary. Shows working and bit breakdown. Free.

The Binary Converter is a free online tool that helps you convert binary to decimal, hexadecimal and octal. convert decimal to binary. shows working and bit breakdown. free It runs in your browser with no sign-up, downloads, or installation needed. All processing happens locally — your data stays on your device.
Binary Converter

How to use the Binary Converter

1

Convert between number bases

Binary (base 2) uses only 0 and 1. Decimal (base 10) is everyday numbers. Hexadecimal (base 16) uses 0–9 and A–F. Octal (base 8) uses 0–7. All are ways to represent the same quantity — 1101 binary = 13 decimal = D hex = 15 octal.

2

Bit positions

In binary, each position represents a power of 2 — from right to left: 1, 2, 4, 8, 16, 32, 64, 128… To convert binary to decimal, add up the powers of 2 wherever a 1 appears. For example, 1101 = 8+4+0+1 = 13.