Terabit

Multiples of bits
Decimal Value SI 1000 103 kbit kilobit 10002 106 Mbit megabit 10003 109 Gbit gigabit 10004 1012 Tbit terabit 10005 1015 Pbit petabit 10006 1018 Ebit exabit 10007 1021 Zbit zettabit 10008 1024 Ybit yottabit	Binary Value IEC JEDEC 1024 210 Kibit kibibit Kbit kilobit 10242 220 Mibit mebibit Mbit megabit 10243 230 Gibit gibibit Gbit gigabit 10244 240 Tibit tebibit - 10245 250 Pibit pebibit - 10246 260 Eibit exbibit - 10247 270 Zibit zebibit - 10248 280 Yibit yobibit -
See also Nibble Byte Orders of magnitude of data

A terabit is a multiple of the unit bit for digital information or computer storage. The prefix tera (symbol T) is defined in the International System of Units (SI) as a multiplier of 10¹² (1 trillion, short scale), and therefore

1 terabit = 10¹²bits = 1000000000000bits = 1000 gigabits.

The terabit has the unit symbol Tbit or Tb.

The terabit is closely related to the tebibit, a unit multiple derived from the binary prefix tebi of the same order of magnitude, which is equal to 2⁴⁰bits = 1099511627776bits, or approximately 10% larger than the terabit.

See also

• SI prefix
• terabyte