The petabit is a multiple of the unit bit for digital information or computer storage. The prefix peta (symbol P) is defined in the International System of Units (SI) as a multiplier of 10¹⁵ (1 quadrillion, short scale), and therefore 1 petabit = 10¹⁵ bits = 1 000 000 000 000 000 bits = 1000 terabits. The petabit has the unit symbol Pbit or Pb.

conversion table

The exbibyte is a multiple of the unit byte for digital information. It is a member of the set of units with binary prefixes defined by the International Electrotechnical Commission (IEC). Its unit symbol is EiB.

The prefix exbi (symbol Ei) represents multiplication by 2⁶⁰, therefore: 1 exbibyte = 2⁶⁰ bytes = 1 152 921 504 606 846 976 bytes = 1024 pebibytes.

conversion table