|Unit of Digital Information Storage|
|Kilobyte|| 103 Bytes|
|(larger units were proposed but have not yet formally been adopted by the BIPM)|
A kilobyte (kB), derived from kilo- prefix, is an International System of Units (SI) unit of digital information storage equal to 1000 bytes. This unit is part of IEC 80000-13 (International System of Quantities) which requires this unit to always equal 1000 bytes. A closely related unit, kibibyte, is used to represent 1024 bytes.