Editing Binary prefix (section)

== Definitions ==
{{anchor|kibi|mebi|gibi|tebi|pebi|exbi|zebi|yobi|robi|quebi|IEC standard prefixes}}

{| style="margin:auto;" class="wikitable"
|+ Specific units of IEC 60027-2 A.2 and ISO/IEC 80000:13-2025
|-
! colspan="2"|IEC prefix
! colspan="4"|Representations
|-
! Name
! Symbol
! Base 2
! Base 1024
! Value
! Base 10
|-
| kibi
| Ki
| 2<sup>10</sup>
| 1024<sup>1</sup>
| align="right"| {{val|1024}}
| = {{val|1.024|e=3}}
|- style="background:#eee;"
| mebi
| Mi
| 2<sup>20</sup>
| 1024<sup>2</sup>
| align="right" | {{val|1048576}}
| ≈ {{val|1.049|e=6}}
|-
| gibi
| Gi
| 2<sup>30</sup>
| 1024<sup>3</sup>
| align="right" | {{val|1073741824}}
| ≈ {{val|1.074|e=9}}
|- style="background:#eee;"
| tebi
| Ti
| 2<sup>40</sup>
| 1024<sup>4</sup>
| align="right" | {{val|1099511627776}}
| ≈ {{val|1.100|e=12}}
|-
| pebi
| Pi
| 2<sup>50</sup>
| 1024<sup>5</sup>
| align="right" | {{val|1125899906842624}}
| ≈ {{val|1.126|e=15}}
|- style="background:#eee;"
| exbi
| Ei
| 2<sup>60</sup>
| 1024<sup>6</sup>
| align="right" | {{val|1152921504606846976}}
| ≈ {{val|1.153|e=18}}
|-
| zebi
| Zi
| 2<sup>70</sup>
| 1024<sup>7</sup>
| align="right" | {{val|1180591620717411303424}}
| ≈ {{val|1.181|e=21}}
|- style="background:#eee;"
| yobi
| Yi
| 2<sup>80</sup>
| 1024<sup>8</sup>
| align="right" | {{val|1208925819614629174706176}}
| ≈ {{val|1.209|e=24}}
|-
| robi
| Ri
| 2<sup>90</sup>
| 1024<sup>9</sup>
| align="right" | {{val|1237940039285380274899124224}}
| ≈ {{val|1.238|e=27}}
|- style="background:#eee;"
| quebi
| Qi
| 2<sup>100</sup>
| 1024<sup>10</sup>
| align="right" | {{val|1267650600228229401496703205376}}
| ≈ {{val|1.268|e=30}}
|}

{{anchor|robi|quebi}}In 2022, the [[International Bureau of Weights and Measures]] (BIPM) adopted the decimal prefixes [[ronna-|''ronna'']] for 1000<sup>9</sup> and [[quetta-|''quetta'']] for 1000<sup>10</sup>.<ref name="BIPM2022" /><ref name="gibn2022" /> In 2025, the prefixes ''robi'' ({{nowrap|Ri, 1024<sup>9</sup>}}) and ''quebi'' ({{nowrap|Qi, 1024<sup>10</sup>}}) were adopted by the IEC.<ref>{{cite web |title=IEC 80000-13:2025 – Quantities and units – Part 13: Information science and technology |publisher=[[International Electrotechnical Commission]] |url=https://webstore.iec.ch/en/publication/87379 }}</ref>