v • d • e Quantities of bits
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 a unit of information, abbreviated kbit (or kb). A bit is a binary digit, taking a value of either 0 or 1 Binary digits are a basic unit of Information storage and communication An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol to form a Decimal multiple or In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two A kibibit (a contraction of ki lo bi nary digi' t') is a unit of Information or Computer storage, abbreviated Kibit, A megabit is a unit of Information or computer storage abbreviated Mbit (or Mb) A mebibit (a contraction of mega binary digit is a unit of Information or Computer storage, abbreviated Mibit or sometimes Mib. A gigabit is a unit of information or computer storage abbreviated Gbit (or Gb) A gibibit (a contraction of gi ga bi nary digi' t') is a unit of Information or Computer storage, abbreviated as Gibit A terabit is a unit of Information or Computer storage, abbreviated Tbit (or Tb) A tebibit (a contraction of te ra bi nary digi' t') is a unit of Information or Computer storage, abbreviated Tibit or A petabit is a unit of Information or Computer storage, abbreviated Pbit (or Pb) A pebibit (a contraction of pe ta bi nary dig' it') is a unit of Information or Computer storage, abbreviated Pibit or An exabit is a unit of Information or Computer storage, abbreviated Ebit (or Eb) A exbibit (a contraction of ex a bi nary digi' t') is a unit of Information or Computer storage, abbreviated Eibit or A zettabit is a unit of Information or Computer storage, abbreviated Zbit (or Zb) In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two A yottabit is a unit of Information or Computer storage, abbreviated Ybit (or Yb) In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two

The standard definition is 1 kilobit = 10³ bit = 1,000 bit. A bit is a binary digit, taking a value of either 0 or 1 Binary digits are a basic unit of Information storage and communication In the context of storage-memory and address-space sizes, the alternative binary definition of 2¹⁰ = 1,024 bit is occasionally used (see Binary prefix), although this usage is ambiguous. A bit is a binary digit, taking a value of either 0 or 1 Binary digits are a basic unit of Information storage and communication In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two

Kilobits are commonly used to express digital communication speeds, e. g. a 56 kbit/s PSTN or 512 kbit/s broadband Internet connection. In telecommunications Bit rate or Data transfer rate is the average number of Bits characters or blocks per unit time passing between equipment in a data transmission The public switched telephone network ( PSTN) is the network of the world's public circuit-switched Telephone networks in much the same way that the The term broadband can have different meanings in different contexts In the context of telecommunication transmission speeds, the decimal definition 1 kilobit = 1,000 bit is used uniformly.

The kilobit is closely related to the kibibit, which is unambiguously equal to 2¹⁰ = 1,024 bit. A kibibit (a contraction of ki lo bi nary digi' t') is a unit of Information or Computer storage, abbreviated Kibit,

Kilobit (abbreviated to kb with a lower case b) is sometimes confused with the term kilobyte (abbreviated to kB or KB with an upper case B). A kilobyte (derived from the SI prefix Kilo -, meaning 1000 is a unit of Information or Computer storage equal to either 1024

See also

• bit
• kibibit
• kilobyte
• kilobit per second
• binary prefix
• orders of magnitude (data)
• IEEE information for authors, page A1 & A4

A bit is a binary digit, taking a value of either 0 or 1 Binary digits are a basic unit of Information storage and communication A kibibit (a contraction of ki lo bi nary digi' t') is a unit of Information or Computer storage, abbreviated Kibit, A kilobyte (derived from the SI prefix Kilo -, meaning 1000 is a unit of Information or Computer storage equal to either 1024 In telecommunications Bit rate or Data transfer rate is the average number of Bits characters or blocks per unit time passing between equipment in a data transmission In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two This is a list of orders of magnitude for Data (or Information) measured in Bits This article assumes a descriptive attitude towards terminology reflecting

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