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 |