A kilobit is a unit of information storage, commonly abbreviated "kb" or "Kb".
1 kilobit = 103 = 1,000 bits or 210 = 1,024 bits (see Binary prefix).
It is used most commonly to express internet connection speeds, e.g. a 56 kilobit/s PSTN or 512 kilobit/s broadband connection. Telecommunications engineers use the 1,000 bit definition uniformly.
The kilobit is closely related to the kibibit, which is unambiguously equal to 210 = 1,024 bits.
bit << kilobit << megabit
See also
