A gigabit is a unit of information or computer storage, commonly abbreviated "Gb".
1 gigabit = 109 = 1 000 000 000 bits or 230 = 1 073 741 824 bits (see Binary prefix).
megabit << gigabit << terabit
The gigabit is closely related to the gibibit, which is unambiguously equal to 230 bits = 1 073 741 824 bits.
See also
