Hex to Decimal Converter

About this calculator

Hexadecimal is base-16, using digits 0-9 and A-F, and each hex digit maps exactly onto 4 binary bits, which is why it's the standard shorthand for memory addresses, colour codes (#FF5733), and byte values in programming — far more compact than binary and easier to read at a glance. Converting to decimal sums each digit's value times 16 raised to its positional power, e.g. hex 2A = 2×16¹ + 10×16⁰ = 42.

Programmers, students learning number systems, and low-level/embedded developers reading register dumps or debugger output use this conversion constantly, since decimal is the natural unit for everyday quantities while hex (and binary) map directly onto how computers store data.