Petabit

1000 103 kbit kilobit 10002 106 Mbit megabit 10003 109 Gbit gigabit 10004 1012 Tbit terabit 10005 1015 Pbit petabit 10006 1018 Ebit exabit 10007 1021 Zbit zettabit 10008 1024 Ybit yottabit	1024 210 Kibit kibibit Kbit kilobit 10242 220 Mibit mebibit Mbit megabit 10243 230 Gibit gibibit Gbit gigabit 10244 240 Tibit tebibit - 10245 250 Pibit pebibit - 10246 260 Eibit exbibit - 10247 270 Zibit zebibit - 10248 280 Yibit yobibit -

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

The petabit has the unit symbol Pbit or Pb.

The petabit is closely related to the pebibit, a unit multiple derived from the binary prefix pebi of the same order of magnitude, which is equal to 2⁵⁰bits = 1125899906842624bits, or approximately 13% larger than the petabit.

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