Skip to content

FF in Decimal

Hexadecimal FF equals 255 in decimal.

Hexadecimal → Decimal
FF=255
Open FF in the interactive hexadecimal to decimal converter →
Why this number matters: 255 is the maximum value of an unsigned byte (8 bits, 0xFF) and the highest value of each RGB color channel.

FF in all number bases

Decimal255
Hexadecimal0xFF
Binary1111 1111
Octal377

How ff converts from hexadecimal to decimal

Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:

F× 161 = 15 × 16 = 240
F× 160 = 15 × 1 = 15

Sum: 255