🔢 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.