Binary prefixes

In December 1998, the International Electrotechnical Commission (IEC) approved names and symbols for prefixes for binary multiples for use in the fields of data storage, processing and transmission.

Contents: Binary prefix calculator and Binary prefix table.

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Binary prefix conversion calculator:

Enter the number into green field and click at "=" button:

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(result)

prefixes with  red  background are not binary prefixes, they are here just for comparison.

Binary prefix table

Binary prefix table contains 6 prefixes for binary multiples:

Name  Symbol   Factor 
(base) -  20 = 1
kibi Ki  210 = 10241
mebi Mi  220 = 1024
gibi Gi  230 = 10243
tebi Ti  240 = 10244
pebi Pi  250 = 10245
exbi Ei  260 = 10246

Comparison of binary- and SI prefixes:

B = Byte (= 8 bit)

one kibibit = 1 Kibit = 210 bit = 1024 bit

one kilobit = 1 kbit = 103 bit = 1000 bit

one mebibyte = 1 MiB = 220 B = 1 048 576 B

one megabyte = 1 MB = 106 B = 1 000 000 B

one gibibyte = 1 GiB = 230 B = 1 073 741 824 B

one gigabyte = 1 GB = 109 B = 1 000 000 000 B

 

Lines with green background have binary prefixes.

Notice: See also SI prefixes.


Source: NIST.gov - binary prefixes. (retrieved 2017-04-19)

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