Prefixes for Binary Multiplies
IEC International Standard names and symbols
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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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