Hex to Decimal Converter

Hexadecimal is base 16, using the digits 0 to 9 and the letters A to F for ten to fifteen. Each position is worth sixteen times the one to its right.

Type a number and the answer appears straight away.

Your answer

Decimal255

Decimal
255
Hexadecimal
FF
Binary
11111111
Octal
377

The math behind it: Hex to Decimal

FF = 15 x 16 + 15 = 255

Hex is popular in computing because one hex digit represents exactly four binary digits. Web colors such as #FF8800 are three two-digit hex numbers for red, green and blue.

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