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IEC og ISO hava ásett hesi bineru prefiksini at nýta til stór tøl. Tey eru ásett í standardunum IEC 60027-2 A.2 og ISO/IEC 80000 og eru avleidd frá teimum tilsvarandi desimalu SI-prefiksunum .
IEC-prefiks Tal Uppruni (SI-prefiks)
Heiti Symbol 2m 1024n Desimaltal ≈ a × 10b Heiti Symbol 10b
kibi Ki 210 10241 1024 = 1,024 × 103 kilo k 103
mebi Mi 220 10242 7006104857600000000♠ 1048 576 ≈ 1,049 × 106 mega M 106
gibi Gi 230 10243 7009107374182400000♠ 1073 741 824 ≈ 1,074 × 109 giga G 109
tebi Ti 240 10244 7012109951162777600♠ 1099 511 627 776 ≈ 1,100 × 1012 tera T 1012
pebi Pi 250 10245 7015112589990684260♠ 1125 899 906 842 624 ≈ 1,126 × 1015 peta P 1015
exbi Ei 260 10246 7018115292150460680♠ 1152 921 504 606 846 976 ≈ 1,153 × 1018 exa E 1018
zebi Zi 270 10247 7021118059162071740♠ 1180 591 620 717 411 303 424 ≈ 1,181 × 1021 zetta Z 1021
yobi Yi 280 10248 7024120892581961460♠ 1208 925 819 614 629 174 706 176 ≈ 1,209 × 1024 yotta Y 1024
Prefiks
Binert prefiks býtt við desimalum prefiksi
Desimalt prefiks býtt við binerum prefiksi
kibi - kilo
1,024 (+2,4%) 0,9766 (− 2,3%)
mebi - mega
1,049 (+4,9%) 0,9537 (− 4,6%)
gibi - giga
1,074 (+7,4%) 0,9313 (− 6,9%)
tebi - tera
1,100 (+10,0%) 0,9095 (− 9,1%)
pebi - peta
1,126 (+12,6%) 0,8882 (− 11,2%)
exbi - exa
1,153 (+15,3%) 0,8674 (− 13,3%)
zebi - zetta
1,181 (+18,1%) 0,8470 (− 15,3%)
yobi - yotta
1,209 (+20,9%) 0,8272 (− 17,3%)
