Base Converter
Free online base converter tool, binary to hexadecimal supported
Number Base Conversion
Binary (base 2) uses digits 0-1. Octal (base 8) uses 0-7. Decimal (base 10) uses 0-9. Hexadecimal (base 16) uses 0-9 and A-F. This tool converts between all four number bases instantly.
How to Convert Numbers
Select the input base, enter a number, and the tool shows conversions to all other bases. Common uses include debugging binary protocols, converting hex color codes, and understanding memory addresses.
▶What is hexadecimal used for?
Hex is used for memory addresses, color codes (#FF5733), character encoding, MAC addresses, and representing binary data compactly. Each hex digit represents 4 bits.
▶How do I convert binary to decimal manually?
Multiply each binary digit by 2 raised to its position (from right, starting at 0) and sum. For example, 1011 = 1×8 + 0×4 + 1×2 + 1×1 = 11.