Prefixes for Binary Multiplies

IEC International Standard names and symbols for prefixes for binary multiples for use in data processing and transmission.

Factor	Name	Symbol	Origin	Derivation
210	kibi	Ki	kilobinary: (210)1	kilo: (103)1
220	mebi	Mi	megabinary: (210)2	mega: (103)2
230	gibi	Gi	gigabinary: (210)3	giga: (103)3
240	tebi	Ti	terabinary: (210)4	tera: (103)4
250	pebi	Pi	petabinary: (210)5	peta: (103)5
260	exbi	Ei	exabinary: (210)6	exa: (103)6

Binary Multiples compared to SI Prefixes

Multiple	SI Equivalent
one kilobit	1 Kibit = 210 bit = 1024 bit
one kilobit	1 kbit = 103 bit = 1000 bit
one mebibyte	1 MiB = 220 B = 1048576 B
one megabyte	1 MB = 106 B = 1000000 B
one gibibyte	1 GiB = 230 B = 1073741824 B
one gigabyte	1 GB = 109 B = 1000000000 B

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