Base
Calculator

Convert between binary, octal, decimal, and hex. Arithmetic with 32-bit two's complement.

Base Converter

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Arithmetic

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Why do two hex digits represent exactly one byte?

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Frequently Asked Questions

A number base (or radix) defines how many unique digits are used to represent numbers. Base 10 uses digits 0-9, base 2 (binary) uses 0-1, base 16 (hexadecimal) uses 0-9 and A-F.

Multiply each binary digit by 2 raised to the power of its position (starting from 0 on the right), then sum the results. For example, binary 1011 equals 8 + 0 + 2 + 1 = 11 in decimal.

Hexadecimal (base 16) is widely used in computing to represent colors (like #FF5733), memory addresses, and binary data in a more compact human-readable format.

Base Calculator - Binary, Octal, Decimal, Hex | ToolsCanvas