How do I convert hex to decimal?

Each hex digit is multiplied by a power of 16 and summed. For example, 0x1F = 1×16 + 15 = 31 in decimal. This converter handles it instantly, both directions.

How do I convert decimal to hex?

Repeatedly divide the decimal number by 16, recording remainders as hex digits from least to most significant. For example, 255 decimal is 0xFF.

What is hexadecimal used for?

Hex is widely used in computing because each digit maps to exactly 4 binary bits. It is the standard notation for memory addresses, color codes, and machine code.

What other bases does it support?

Besides hex and decimal, the converter also translates to binary (base 2) and octal (base 8), so you can see all common computing representations at once.

What do the 0x and 0b prefixes mean?

0x denotes hexadecimal and 0b denotes binary in most programming languages. The converter displays these prefixes so you can copy values directly into code.

Hex to Decimal Converter

Convert between number systems instantly. The hex to decimal converter translates any value between hexadecimal, decimal, binary, and octal, showing all four representations at once.

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