Hex to Decimal Converter
Convert numbers between hexadecimal, decimal, octal, and binary. Type in any field and the others update instantly.
Free Number Base Converter
The Toolts Hex to Decimal Converter translates numbers between the four most common number systems used in computing: hexadecimal (base 16), decimal (base 10), octal (base 8), and binary (base 2). Type a value in any field and all other fields update automatically in real time.
Understanding Number Bases
Decimal (base 10) is the standard number system used in everyday life, with digits 0–9. Binary (base 2) uses only 0 and 1 and is the fundamental language of all digital computers. Hexadecimal (base 16) uses digits 0–9 and letters A–F, providing a compact way to represent binary data — each hex digit represents exactly 4 binary digits. Octal (base 8) uses digits 0–7 and was historically common in early computing systems.
Common Conversions
The most searched conversions are hex to decimal (used when reading memory addresses, color codes, and MAC addresses), decimal to hex (used when programming), and decimal to binary (used in networking and computer science education). This tool handles all directions simultaneously — no need to choose a specific conversion.