Quantities of bytes (From Wikipedia)

Quantities of bytes
SI prefixes			Binary prefixes (IEC 60027-2)
Name (Symbol)	Value in Popular Usage	Value in Standard SI	Name (Symbol)	Value
kilobyte (kB)	210	103	kibibyte (KiB)	210
megabyte (MB)	220	106	mebibyte (MiB)	220
gigabyte (GB)	230	109	gibibyte (GiB)	230
terabyte (TB)	240	1012	tebibyte (TiB)	240
petabyte (PB)	250	1015	pebibyte (PiB)	250
exabyte (EB)	260	1018	exbibyte (EiB)	260
zettabyte (ZB)	270	1021	zebibyte (ZiB)	270
yottabyte (YB)	280	1024	yobibyte (YiB)	280