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|---|---|---|---|---|
| SI prefixes | 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 |
A kilobit is an expression of grouped bits meaning 1,000 (103) bits.
The term 'kilobit' is most commonly used in the expression of data rates (digital communication speeds) in the abbreviated form "kbps", "kb/s"[1], or "kbit/s", meaning "kilobits per second". For example, "a 56 kbit/s PSTN", or "a 512 kbit/s broadband Internet connection".
The abbreviation kb (for kilobit) should not be confused with the abbreviation the term kilobyte (abbreviated to kB or KB, with an upper case B). Though the prefix "kilo-" is used to indicate 1,024 when used with Bytes,the decimal definition (1 kilobit per second = 1,000 bits per second) is used uniformly in the context of telecommunication transmission speeds.
See also
References
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