Gigabit

This redirect is about the unit of information. For the networking technology, see Gigabit Ethernet.

Multiple-bit units
Decimal 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 10009 Rbit ronnabit 100010 Qbit quettabit	Binary Value IEC Memory 1024 Kibit kibibit Kbit Kb kilobit 10242 Mibit mebibit Mbit Mb megabit 10243 Gibit gibibit Gbit Gb gigabit 10244 Tibit tebibit — 10245 Pibit pebibit — 10246 Eibit exbibit — 10247 Zibit zebibit — 10248 Yibit yobibit — — —
Orders of magnitude of data

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), 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, which is equal to 2³⁰bits = 1073741824bits, or approximately 7% larger than the gigabit.

See also

• SI prefix
• Gigabyte
• Gigabit per second
• Gigabit Ethernet
• 10 Gigabit Ethernet