How does hex to decimal conversion work?

Each hexadecimal digit is a power of sixteen. The value is the sum of each digit times its place value — for example 0xBEEF is 11×16³ + 14×16² + 14×16 + 15 = 48879.

Can I include a 0x prefix or spaces?

Yes. A leading 0x (case-insensitive) and any spaces are stripped automatically before conversion, so pasted values just work.

Is my data sent to a server?

No. The conversion runs entirely in your browser — nothing is uploaded anywhere.

Hex to Decimal Converter

Turn any hexadecimal value into its base-10 number.

Hex to decimal — base-16 to base-10

Paste any hexadecimal value, with or without a 0x prefix, and this tool returns the decimal (base 10) number, plus the binary and octal equivalents.

Everything runs in your browser — nothing is uploaded.