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This article is about the unit of information. For the networking technology, see Gigabit Ethernet.
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 Kibit kibibit Kbit kilobit
10242 Mibit mebibit Mbit megabit
10243 Gibit gibibit Gbit gigabit
10244 Tibit tebibit -
10245 Pibit pebibit -
10246 Eibit exbibit -
10247 Zibit zebibit -
10248 Yibit yobibit -

The gigabit is a multiple of the unit bit for digital information or computer storage. The prefix giga (symbol G) is defined in the International System of Units (SI) as a multiplier of 109 (1 billion, short scale),[1] and therefore

1 gigabit = 109bits = 1000000000bits.

The gigabit has the unit symbol Gbit or Gb.

Using the common byte size of 8 bits, 1 Gbit is equal to 125 megabytes (MB) or approximately 119 mebibytes (MiB).

The gigabit is closely related to the gibibit, a unit multiple derived from the binary prefix gibi (symbol Gi) of the same order of magnitude,[2] which is equal to 230bits = 1073741824bits, or approximately 7% larger than the gigabit.

See also[edit]