Gigabit per second (Gbit/s)

One billion bits per second. Gigabit Ethernet and fiber plans run at 1 Gbit/s.

What is a gigabit per second?

Symbol: Gbit/s
Quantity: Data Transfer
Unit system: SI
Definition: One billion bits per second. Gigabit Ethernet and fiber plans run at 1 Gbit/s.
Exact: Yes, the value is exact by definition
Source: IEC 80000-13:2008, Quantities and units: Information science and technology

Used for fiber internet plans, Ethernet ports and interfaces such as USB and Thunderbolt.

Gigabit per second in other units
Gigabit per second	Megabit per second	Gigabyte per second	Megabyte per second
1 Gbit/s	= 1000 Mbit/s	= 0.125 GB/s	= 125 MB/s
10 Gbit/s	= 10000 Mbit/s	= 1.25 GB/s	= 1250 MB/s
100 Gbit/s	= 100000 Mbit/s	= 12.5 GB/s	= 12500 MB/s
1000 Gbit/s	= 1000000 Mbit/s	= 125 GB/s	= 125000 MB/s

The next smaller data transfer unit is the mebibyte per second (MiB/s). 1 Gbit/s = 119.20928955078125 MiB/s, and 1 MiB/s = 0.008388608 Gbit/s.

The next larger data transfer unit is the gigabyte per second (GB/s). 1 Gbit/s = 0.125 GB/s, and 1 GB/s = 8 Gbit/s.

How many megabits per second are in one gigabit per second?: One gigabit per second = 1000 Mbit/s (megabits per second).
How many gigabytes per second are in one gigabit per second?: One gigabit per second = 0.125 GB/s (gigabytes per second).
How many megabytes per second are in one gigabit per second?: One gigabit per second = 125 MB/s (megabytes per second).