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|---|---|---|---|---|
| SI decimal prefixes | IEC binary prefixes | |||
| Name (Symbol) |
Standard SI |
Binary usage |
Name (Symbol) |
Value |
| kilobit (kbit) | 103 | 210 | kibibit (Kibit) | 210 |
| megabit (Mbit) | 106 | 220 | mebibit (Mibit) | 220 |
| gigabit (Gbit) | 109 | 230 | gibibit (Gibit) | 230 |
| terabit (Tbit) | 1012 | 240 | tebibit (Tibit) | 240 |
| petabit (Pbit) | 1015 | 250 | pebibit (Pibit) | 250 |
| exabit (Ebit) | 1018 | 260 | exbibit (Eibit) | 260 |
| zettabit (Zbit) | 1021 | 270 | zebibit (Zibit) | 270 |
| yottabit (Ybit) | 1024 | 280 | yobibit (Yibit) | 280 |
| See also: Nibble · Byte · Multiples of bytes Orders of magnitude of data |
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A petabit is a unit of information or computer storage, abbreviated Pbit (or Pb).
1 petabit = 1015 bits = 1,000,000,000,000,000 bits[1] (one quadrillion)
The petabit is closely related to the pebibit, which is equal to 250 bits.
See also
Notes
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