A gigabit per second (gbps or gbit/s) is a unit of data transmission equal to 1,000 megabits per second or 1,000,000 kilobits per second or 1,000,000,000 bits per second. Only a few applications utilize speeds measured in gbit/s:

• SCSI & Fibre Channel hard drives
• OC-24, a 1.244 gbit/s data channel

Confusion

One megabit per second should not be confused with mibibit per second :

Related rates

Base 10:

megabit per second << gigabit per second << terabit per second

Base 2:

mibibit per second << gibibit per second << tibibit per second