kilowatt-hour

noun

A unit of energy equal to that provided by one kilowatt acting for one hour (3·6 × 10⁶ joules).

Meanings

nounkilowatt-hour (plural kilowatt-hours)

plural kilowatt-hours

  1. A unit of energy equal to that provided by one kilowatt acting for one hour (3·6 × 10⁶ joules).
    2 more examples

    Holonyms: watt-year (31.536e6 J) < gigajoule (1.000e9 J) < megawatt-hour (3.600e9 J) < kilowatt-year (31.536e9 J) < terajoule (1.000e12 J) < gigawatt-hour (3.600e12 J) < megawatt-year (31.536e12 J) < petajoule (1.000e15 J) < terawatt-hour (3.600e15 J) < gigawatt-year (31.536e15 J) < exajoule (1.000e18 J) < petawatt-hour (3.600e18 J) < terawatt-year (31.536e18 J)

    Meronyms: yoctojoule (1.000e-24 J) < zeptojoule (1.000e-21 J) < attojoule (1.000e-18 J) < hartree (4.35974e-18 J) < femtojoule (1.000e-15 J) < picojoule (1.000e-12 J) < nanojoule (1.000e-9 J) < microjoule (1.000e-6 J) < millijoule (1.000e-3 J) < joule (1 J) < milliwatt-hour (3.6 J) < microwatt-year (31.536 J) < kilojoule (1.000e3 J) < watt-hour (3.600e3 J) < milliwatt-year (31.536e3 J) < megajoule (1.000e6 J)

Origin

By surface analysis, kilowatt + hour, or, by surface analysis, kilo- + watt-hour.

Full word history & related roots →

Translations

Bulgarian килова́тча́с
  • килова́тча́с (kilovátčás)unit of energy
Chinese Mandarin 千瓦時 /千瓦时, 千瓦小時 /千瓦小时
  • 千瓦時 /千瓦时 (qiānwǎshí)unit of energy
  • 千瓦小時 /千瓦小时 (qiānwǎ xiǎoshí)unit of energy
  • 度 (dù)unit of energy
Czech kilowatthodina
  • kilowatthodinaunit of energy
Danish kilowatt-time, kilowattime
  • kilowatt-timeunit of energy
  • kilowattimeunit of energy
Finnish kilowattitunti
  • kilowattituntiunit of energy
French kilowatt-heure, kilowattheure
  • kilowatt-heureunit of energy
  • kilowattheureunit of energy
German Kilowattstunde
  • Kilowattstundeunit of energy
Greek κιλοβατώρα
  • κιλοβατώρα (kilovatóra)unit of energy
Hungarian kilowattóra
  • kilowattóraunit of energy
Icelandic kílóvattstund
  • kílóvattstundunit of energy
Italian chilowattora
  • chilowattoraunit of energy
Japanese キロワット時
  • キロワット時 (kirowattoji)unit of energy
Latvian kilovatstunda
  • kilovatstundaunit of energy
Norwegian Bokmål kilowattime, kilowatt-time
  • kilowattimeunit of energy
  • kilowatt-timeunit of energy
Polish kilowatogodzina
  • kilowatogodzinaunit of energy
Portuguese quilowatt-hora
  • quilowatt-horaunit of energy
Romanian kilowatt-oră
  • kilowatt-orăunit of energy
Russian килова́тт-час
  • килова́тт-час (kilovátt-čas)unit of energy
Spanish kilovatio-hora
  • kilovatio-horaunit of energy
Swedish kilowattimme
  • kilowattimmeunit of energy
Turkish kilovat saat
  • kilovat saatunit of energy
Ukrainian кілова́т-годи́на
  • кілова́т-годи́на (kilovát-hodýna)unit of energy
Cite this entry
APA

kilowatt-hour. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/kilowatt-hour

MLA

“kilowatt-hour.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/kilowatt-hour. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “kilowatt-hour,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/kilowatt-hour.

Source: kilowatt-hour on Wiktionary, CC BY-SA 4.0.