Comment convertir des Go en To ?
Divisez le nombre de gigaoctets par 1000. Le passage au téraoctet devient lisible au-delà de 1000 Go : une sauvegarde de 3400 Go se lit plus facilement 3,4 To.
To = Go ÷ 1000Go = To × 1000
Où ces deux unités servent
Sur une même machine, la mémoire vive se compte en puissances de 1024 et le disque en puissances de 1000 : deux gigaoctets différents cohabitent dans le même boîtier. Un disque vendu pour un téraoctet s'affiche à 931 gigaoctets sous Windows, qui divise par 1024 ce que le fabricant a compté par 1000 : rien ne manque, seule l'étiquette change de convention.
Capacités en gigaoctets et téraoctets
| 64 Go (carte mémoire) | 0,064 To |
| 128 Go (smartphone) | 0,128 To |
| 256 Go (SSD portable) | 0,256 To |
| 500 Go | 0,5 To |
| 1000 Go | 1 To |
| 2000 Go | 2 To |
| 4000 Go | 4 To |
| 5000 Go | 5 To |
| 10 000 Go | 10 To |
| 20 000 Go | 20 To |
| 50 000 Go (archive) | 50 To |
Voir toutes les valeurs
- 1 Go = 0,001 To
- 2 Go = 0,002 To
- 3 Go = 0,003 To
- 4 Go = 0,004 To
- 5 Go = 0,005 To
- 6 Go = 0,006 To
- 7 Go = 0,007 To
- 8 Go = 0,008 To
- 9 Go = 0,009 To
- 10 Go = 0,01 To
- 11 Go = 0,011 To
- 12 Go = 0,012 To
- 13 Go = 0,013 To
- 14 Go = 0,014 To
- 15 Go = 0,015 To
- 16 Go = 0,016 To
- 17 Go = 0,017 To
- 18 Go = 0,018 To
- 19 Go = 0,019 To
- 20 Go = 0,02 To
- 21 Go = 0,021 To
- 22 Go = 0,022 To
- 23 Go = 0,023 To
- 24 Go = 0,024 To
- 25 Go = 0,025 To
- 26 Go = 0,026 To
- 27 Go = 0,027 To
- 28 Go = 0,028 To
- 29 Go = 0,029 To
- 30 Go = 0,03 To
- 31 Go = 0,031 To
- 32 Go = 0,032 To
- 33 Go = 0,033 To
- 34 Go = 0,034 To
- 35 Go = 0,035 To
- 36 Go = 0,036 To
- 37 Go = 0,037 To
- 38 Go = 0,038 To
- 39 Go = 0,039 To
- 40 Go = 0,04 To
- 41 Go = 0,041 To
- 42 Go = 0,042 To
- 43 Go = 0,043 To
- 44 Go = 0,044 To
- 45 Go = 0,045 To
- 46 Go = 0,046 To
- 47 Go = 0,047 To
- 48 Go = 0,048 To
- 49 Go = 0,049 To
- 50 Go = 0,05 To
- 51 Go = 0,051 To
- 52 Go = 0,052 To
- 53 Go = 0,053 To
- 54 Go = 0,054 To
- 55 Go = 0,055 To
- 56 Go = 0,056 To
- 57 Go = 0,057 To
- 58 Go = 0,058 To
- 59 Go = 0,059 To
- 60 Go = 0,06 To
- 61 Go = 0,061 To
- 62 Go = 0,062 To
- 63 Go = 0,063 To
- 64 Go = 0,064 To
- 65 Go = 0,065 To
- 66 Go = 0,066 To
- 67 Go = 0,067 To
- 68 Go = 0,068 To
- 69 Go = 0,069 To
- 70 Go = 0,07 To
- 71 Go = 0,071 To
- 72 Go = 0,072 To
- 73 Go = 0,073 To
- 74 Go = 0,074 To
- 75 Go = 0,075 To
- 76 Go = 0,076 To
- 77 Go = 0,077 To
- 78 Go = 0,078 To
- 79 Go = 0,079 To
- 80 Go = 0,08 To
- 81 Go = 0,081 To
- 82 Go = 0,082 To
- 83 Go = 0,083 To
- 84 Go = 0,084 To
- 85 Go = 0,085 To
- 86 Go = 0,086 To
- 87 Go = 0,087 To
- 88 Go = 0,088 To
- 89 Go = 0,089 To
- 90 Go = 0,09 To
- 91 Go = 0,091 To
- 92 Go = 0,092 To
- 93 Go = 0,093 To
- 94 Go = 0,094 To
- 95 Go = 0,095 To
- 96 Go = 0,096 To
- 97 Go = 0,097 To
- 98 Go = 0,098 To
- 99 Go = 0,099 To
- 100 Go = 0,1 To
- 101 Go = 0,101 To
- 102 Go = 0,102 To
- 103 Go = 0,103 To
- 104 Go = 0,104 To
- 105 Go = 0,105 To
- 106 Go = 0,106 To
- 107 Go = 0,107 To
- 108 Go = 0,108 To
- 109 Go = 0,109 To
- 110 Go = 0,11 To
- 111 Go = 0,111 To
- 112 Go = 0,112 To
- 113 Go = 0,113 To
- 114 Go = 0,114 To
- 115 Go = 0,115 To
- 116 Go = 0,116 To
- 117 Go = 0,117 To
- 118 Go = 0,118 To
- 119 Go = 0,119 To
- 120 Go = 0,12 To
- 121 Go = 0,121 To
- 122 Go = 0,122 To
- 123 Go = 0,123 To
- 124 Go = 0,124 To
- 125 Go = 0,125 To
- 126 Go = 0,126 To
- 127 Go = 0,127 To
- 128 Go = 0,128 To
- 129 Go = 0,129 To
- 130 Go = 0,13 To
- 131 Go = 0,131 To
- 132 Go = 0,132 To
- 133 Go = 0,133 To
- 134 Go = 0,134 To
- 135 Go = 0,135 To
- 136 Go = 0,136 To
- 137 Go = 0,137 To
- 138 Go = 0,138 To
- 139 Go = 0,139 To
- 140 Go = 0,14 To
- 141 Go = 0,141 To
- 142 Go = 0,142 To
- 143 Go = 0,143 To
- 144 Go = 0,144 To
- 145 Go = 0,145 To
- 146 Go = 0,146 To
- 147 Go = 0,147 To
- 148 Go = 0,148 To
- 149 Go = 0,149 To
- 150 Go = 0,15 To
- 151 Go = 0,151 To
- 152 Go = 0,152 To
- 153 Go = 0,153 To
- 154 Go = 0,154 To
- 155 Go = 0,155 To
- 156 Go = 0,156 To
- 157 Go = 0,157 To
- 158 Go = 0,158 To
- 159 Go = 0,159 To
- 160 Go = 0,16 To
- 161 Go = 0,161 To
- 162 Go = 0,162 To
- 163 Go = 0,163 To
- 164 Go = 0,164 To
- 165 Go = 0,165 To
- 166 Go = 0,166 To
- 167 Go = 0,167 To
- 168 Go = 0,168 To
- 169 Go = 0,169 To
- 170 Go = 0,17 To
- 171 Go = 0,171 To
- 172 Go = 0,172 To
- 173 Go = 0,173 To
- 174 Go = 0,174 To
- 175 Go = 0,175 To
- 176 Go = 0,176 To
- 177 Go = 0,177 To
- 178 Go = 0,178 To
- 179 Go = 0,179 To
- 180 Go = 0,18 To
- 181 Go = 0,181 To
- 182 Go = 0,182 To
- 183 Go = 0,183 To
- 184 Go = 0,184 To
- 185 Go = 0,185 To
- 186 Go = 0,186 To
- 187 Go = 0,187 To
- 188 Go = 0,188 To
- 189 Go = 0,189 To
- 190 Go = 0,19 To
- 191 Go = 0,191 To
- 192 Go = 0,192 To
- 193 Go = 0,193 To
- 194 Go = 0,194 To
- 195 Go = 0,195 To
- 196 Go = 0,196 To
- 197 Go = 0,197 To
- 198 Go = 0,198 To
- 199 Go = 0,199 To
- 200 Go = 0,2 To
- 205 Go = 0,205 To
- 210 Go = 0,21 To
- 215 Go = 0,215 To
- 220 Go = 0,22 To
- 225 Go = 0,225 To
- 230 Go = 0,23 To
- 235 Go = 0,235 To
- 240 Go = 0,24 To
- 245 Go = 0,245 To
- 250 Go = 0,25 To
- 255 Go = 0,255 To
- 260 Go = 0,26 To
- 265 Go = 0,265 To
- 270 Go = 0,27 To
- 275 Go = 0,275 To
- 280 Go = 0,28 To
- 285 Go = 0,285 To
- 290 Go = 0,29 To
- 295 Go = 0,295 To
- 300 Go = 0,3 To
- 305 Go = 0,305 To
- 310 Go = 0,31 To
- 315 Go = 0,315 To
- 320 Go = 0,32 To
- 325 Go = 0,325 To
- 330 Go = 0,33 To
- 335 Go = 0,335 To
- 340 Go = 0,34 To
- 345 Go = 0,345 To
- 350 Go = 0,35 To
- 355 Go = 0,355 To
- 360 Go = 0,36 To
- 365 Go = 0,365 To
- 370 Go = 0,37 To
- 375 Go = 0,375 To
- 380 Go = 0,38 To
- 385 Go = 0,385 To
- 390 Go = 0,39 To
- 395 Go = 0,395 To
- 400 Go = 0,4 To
- 405 Go = 0,405 To
- 410 Go = 0,41 To
- 415 Go = 0,415 To
- 420 Go = 0,42 To
- 425 Go = 0,425 To
- 430 Go = 0,43 To
- 435 Go = 0,435 To
- 440 Go = 0,44 To
- 445 Go = 0,445 To
- 450 Go = 0,45 To
- 455 Go = 0,455 To
- 460 Go = 0,46 To
- 465 Go = 0,465 To
- 470 Go = 0,47 To
- 475 Go = 0,475 To
- 480 Go = 0,48 To
- 485 Go = 0,485 To
- 490 Go = 0,49 To
- 495 Go = 0,495 To
- 500 Go = 0,5 To
- 510 Go = 0,51 To
- 520 Go = 0,52 To
- 530 Go = 0,53 To
- 540 Go = 0,54 To
- 550 Go = 0,55 To
- 560 Go = 0,56 To
- 570 Go = 0,57 To
- 580 Go = 0,58 To
- 590 Go = 0,59 To
- 600 Go = 0,6 To
- 610 Go = 0,61 To
- 620 Go = 0,62 To
- 630 Go = 0,63 To
- 640 Go = 0,64 To
- 650 Go = 0,65 To
- 660 Go = 0,66 To
- 670 Go = 0,67 To
- 680 Go = 0,68 To
- 690 Go = 0,69 To
- 700 Go = 0,7 To
- 710 Go = 0,71 To
- 720 Go = 0,72 To
- 730 Go = 0,73 To
- 740 Go = 0,74 To
- 750 Go = 0,75 To
- 760 Go = 0,76 To
- 770 Go = 0,77 To
- 780 Go = 0,78 To
- 790 Go = 0,79 To
- 800 Go = 0,8 To
- 810 Go = 0,81 To
- 820 Go = 0,82 To
- 830 Go = 0,83 To
- 840 Go = 0,84 To
- 850 Go = 0,85 To
- 860 Go = 0,86 To
- 870 Go = 0,87 To
- 880 Go = 0,88 To
- 890 Go = 0,89 To
- 900 Go = 0,9 To
- 910 Go = 0,91 To
- 920 Go = 0,92 To
- 930 Go = 0,93 To
- 940 Go = 0,94 To
- 950 Go = 0,95 To
- 960 Go = 0,96 To
- 970 Go = 0,97 To
- 980 Go = 0,98 To
- 990 Go = 0,99 To
- 1 000 Go = 1 To
- 1 025 Go = 1,025 To
- 1 050 Go = 1,05 To
- 1 075 Go = 1,075 To
- 1 100 Go = 1,1 To
- 1 125 Go = 1,125 To
- 1 150 Go = 1,15 To
- 1 175 Go = 1,175 To
- 1 200 Go = 1,2 To
- 1 225 Go = 1,225 To
- 1 250 Go = 1,25 To
- 1 275 Go = 1,275 To
- 1 300 Go = 1,3 To
- 1 325 Go = 1,325 To
- 1 350 Go = 1,35 To
- 1 375 Go = 1,375 To
- 1 400 Go = 1,4 To
- 1 425 Go = 1,425 To
- 1 450 Go = 1,45 To
- 1 475 Go = 1,475 To
- 1 500 Go = 1,5 To
- 1 525 Go = 1,525 To
- 1 550 Go = 1,55 To
- 1 575 Go = 1,575 To
- 1 600 Go = 1,6 To
- 1 625 Go = 1,625 To
- 1 650 Go = 1,65 To
- 1 675 Go = 1,675 To
- 1 700 Go = 1,7 To
- 1 725 Go = 1,725 To
- 1 750 Go = 1,75 To
- 1 775 Go = 1,775 To
- 1 800 Go = 1,8 To
- 1 825 Go = 1,825 To
- 1 850 Go = 1,85 To
- 1 875 Go = 1,875 To
- 1 900 Go = 1,9 To
- 1 925 Go = 1,925 To
- 1 950 Go = 1,95 To
- 1 975 Go = 1,975 To
- 2 000 Go = 2 To
- 2 050 Go = 2,05 To
- 2 100 Go = 2,1 To
- 2 150 Go = 2,15 To
- 2 200 Go = 2,2 To
- 2 250 Go = 2,25 To
- 2 300 Go = 2,3 To
- 2 350 Go = 2,35 To
- 2 400 Go = 2,4 To
- 2 450 Go = 2,45 To
- 2 500 Go = 2,5 To
- 2 550 Go = 2,55 To
- 2 600 Go = 2,6 To
- 2 650 Go = 2,65 To
- 2 700 Go = 2,7 To
- 2 750 Go = 2,75 To
- 2 800 Go = 2,8 To
- 2 850 Go = 2,85 To
- 2 900 Go = 2,9 To
- 2 950 Go = 2,95 To
- 3 000 Go = 3 To
- 3 050 Go = 3,05 To
- 3 100 Go = 3,1 To
- 3 150 Go = 3,15 To
- 3 200 Go = 3,2 To
- 3 250 Go = 3,25 To
- 3 300 Go = 3,3 To
- 3 350 Go = 3,35 To
- 3 400 Go = 3,4 To
- 3 450 Go = 3,45 To
- 3 500 Go = 3,5 To
- 3 550 Go = 3,55 To
- 3 600 Go = 3,6 To
- 3 650 Go = 3,65 To
- 3 700 Go = 3,7 To
- 3 750 Go = 3,75 To
- 3 800 Go = 3,8 To
- 3 850 Go = 3,85 To
- 3 900 Go = 3,9 To
- 3 950 Go = 3,95 To
- 4 000 Go = 4 To
- 4 050 Go = 4,05 To
- 4 100 Go = 4,1 To
- 4 150 Go = 4,15 To
- 4 200 Go = 4,2 To
- 4 250 Go = 4,25 To
- 4 300 Go = 4,3 To
- 4 350 Go = 4,35 To
- 4 400 Go = 4,4 To
- 4 450 Go = 4,45 To
- 4 500 Go = 4,5 To
- 4 550 Go = 4,55 To
- 4 600 Go = 4,6 To
- 4 650 Go = 4,65 To
- 4 700 Go = 4,7 To
- 4 750 Go = 4,75 To
- 4 800 Go = 4,8 To
- 4 850 Go = 4,85 To
- 4 900 Go = 4,9 To
- 4 950 Go = 4,95 To
- 5 000 Go = 5 To
- 5 100 Go = 5,1 To
- 5 200 Go = 5,2 To
- 5 300 Go = 5,3 To
- 5 400 Go = 5,4 To
- 5 500 Go = 5,5 To
- 5 600 Go = 5,6 To
- 5 700 Go = 5,7 To
- 5 800 Go = 5,8 To
- 5 900 Go = 5,9 To
- 6 000 Go = 6 To
- 6 100 Go = 6,1 To
- 6 200 Go = 6,2 To
- 6 300 Go = 6,3 To
- 6 400 Go = 6,4 To
- 6 500 Go = 6,5 To
- 6 600 Go = 6,6 To
- 6 700 Go = 6,7 To
- 6 800 Go = 6,8 To
- 6 900 Go = 6,9 To
- 7 000 Go = 7 To
- 7 100 Go = 7,1 To
- 7 200 Go = 7,2 To
- 7 300 Go = 7,3 To
- 7 400 Go = 7,4 To
- 7 500 Go = 7,5 To
- 7 600 Go = 7,6 To
- 7 700 Go = 7,7 To
- 7 800 Go = 7,8 To
- 7 900 Go = 7,9 To
- 8 000 Go = 8 To
- 8 100 Go = 8,1 To
- 8 200 Go = 8,2 To
- 8 300 Go = 8,3 To
- 8 400 Go = 8,4 To
- 8 500 Go = 8,5 To
- 8 600 Go = 8,6 To
- 8 700 Go = 8,7 To
- 8 800 Go = 8,8 To
- 8 900 Go = 8,9 To
- 9 000 Go = 9 To
- 9 100 Go = 9,1 To
- 9 200 Go = 9,2 To
- 9 300 Go = 9,3 To
- 9 400 Go = 9,4 To
- 9 500 Go = 9,5 To
- 9 600 Go = 9,6 To
- 9 700 Go = 9,7 To
- 9 800 Go = 9,8 To
- 9 900 Go = 9,9 To
- 10 000 Go = 10 To
Définition décimale de la norme IEC 80000-13 : le téraoctet vaut 10¹² octets, soit exactement 1000 gigaoctets. Le tébioctet binaire, lui, vaut 2⁴⁰ octets, environ 1,1 To. Méthodologie & sources.
Questions fréquentes
À partir de quand parler en téraoctets ?
Au-delà de 1000 Go, l'usage bascule naturellement. En dessous, le gigaoctet reste plus parlant : personne n'annonce un smartphone à 0,256 To alors que 256 Go se comprend d'un coup d'œil.
Mon offre cloud de 2 To, c'est beaucoup ?
C'est 2000 Go, de quoi loger environ 400 000 photos de smartphone ou 500 films en 1080p. Pour une bibliothèque photo familiale c'est confortable ; pour du montage 4K régulier, cela se remplit en un an ou deux.
Pourquoi mon disque de 4 To n'affiche-t-il que 3,64 To ?
Parce que le système divise par 2⁴⁰ au lieu de 10¹² tout en gardant le symbole To. Ce sont en réalité des tébioctets. L'écart est constant, environ 9 %, et croît avec la capacité annoncée.
Combien de temps faut-il pour remplir un téraoctet ?
Divisez le volume par le débit réel : un million de mégaoctets à 110 Mo/s, ce qu'atteint un lien Gigabit Ethernet saturé, demande 2 h 30. Le même téraoctet passe en 11 heures sur un disque externe USB 2.0 à 25 Mo/s, et en 22 heures sur une fibre dont la voie montante plafonne à 100 Mb/s. Une sauvegarde en ligne se mesure en heures, pas en clics.
Quelles unités viennent après le téraoctet ?
Péta, exa, zetta et yotta, chacune mille fois la précédente. La 27ᵉ Conférence générale des poids et mesures a ajouté deux étages le 18 novembre 2022, ronna pour 10²⁷ et quetta pour 10³⁰, en citant explicitement la croissance des volumes de données. Un ronnaoctet vaut un million de milliards de téraoctets.