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kilobyte

noun

kilobyte is a noun meaning “One thousand (10³, or 1,000) bytes” (English Wiktionary, September 2026). It is spelled K-I-L-O-B-Y-T-E and has 3 syllables, and it appears about once in every 23 million words in written English (wordfreq, 2021 data). The plural of kilobyte is kilobytes.

What does kilobyte mean?

noun

  1. 1

    One thousand (10³, or 1,000) bytes.

  2. 2

    informalA kibibyte.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce kilobyte?

  • US

Kilobyte has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-kilobyte.oga, Wikimedia Commons (author and licence on each file's page).

Forms of kilobyte

  • kilobytes plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is kilobyte?

Kilobyte appears about once in every 23 million words in written English, the 145,125th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you abbreviate kilobyte?

Wiktionary records 3 abbreviations of kilobyte: KB, kB, kbyte.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Kilobyte in Spanish, French, German and Portuguese

In the sense 1024 bytes:

LanguageWords
Frenchkilooctet
GermanKilobyte
Portuguesekilobyte
Spanishkilobyte

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does kilobyte come from?

Coined in the 1960s, from kilo- (“thousand”) + byte.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).