http://www.numion.com/Calculators/Units.html

In data communications only the Metric definition of a kilobyte
(1000 bytes per kilobyte) is correct. The binary definition of a
kilobyte (1024 bytes per kilobyte) is used in areas such as data
storage (harddisk, memory), but not for expressing bandwidth and
throughput.

Data Stream Measurements:
	kbps = kilobits  per second
	KBps = kilobytes per second
	1 kbps = 0.125 KBps
	1 KBps = 8 kbps

	bps (bits per second)
	Bps (bytes per second)
	kbps (kilobits per second)
	KBps (kilobytes per second)
	mbps (megabits per second)
	MBps (megabytes per second)
	gbps (gigabits per second)
	GBps (gigabytes per second)
	tbps (terabits per second)
	TBps (terabytes per second)

Data Size Measurements:

	1 bit............: 1 bit
	1 byte...........: 8 bits
	1 octet..........: 8 bits
	1 word...........: 16 bits or 2 bytes
	1 KB (kilobyte)..: 1024 bytes
	1 MB (megabyte)..: 1024 KB
	1 GB (gigabyte)..: 1024 MB
	1 TB (terabyte)..: 1024 GB
	1 PB (petabyte)..: 1024 TB
	1 EB (exabyte)...: 1024 PB