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Multiples of bits
Value Metric
1000 kbit kilobit
10002 Mbit megabit
10003 Gbit gigabit
10004 Tbit terabit
10005 Pbit petabit
10006 Ebit exabit
10007 Zbit zettabit
10008 Ybit yottabit
1024 Kbit kilobit Kibit kibibit
10242 Mbit megabit Mibit mebibit
10243 Gbit gigabit Gibit gibibit
10244 - - Tibit tebibit
10245 - - Pibit pebibit
10246 - - Eibit exbibit
10247 - - Zibit zebibit
10248 - - Yibit yobibit

The exabit is a multiple of the unit bit for digital information or computer storage. The prefix exa (symbol E) is defined in the International System of Units (SI) as a multiplier of 1018 (1 quintillion, short scale),[1] and therefore

1 exabit = 1018bits = 1000000000000000000bits = 1000 petabits.

The exabit has the unit symbol Ebit or Eb.

The exabit is closely related to the exbibit, a unit multiple derived from the binary prefix exbi of the same order of magnitude,[2] which is equal to 260bits = 1152921504606846976bits, or approximately 15% larger than the exabit.

See also[edit]