Standard Lemma guide

kilowatt-hour

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

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)

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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

Across languages

Translations

33 source translations are retained for this English entry.

  • Belarusian: кілава́т-гадзі́на (kilavát-hadzína) — unit of energy
  • Bulgarian: килова́тча́с (kilovátčás) — unit of energy
  • Chinese Mandarin: 千瓦時 /千瓦时 (qiānwǎshí) — unit of energy
  • Chinese Mandarin: 千瓦小時 /千瓦小时 (qiānwǎ xiǎoshí) — unit of energy
  • Chinese Mandarin: 度 (dù) — unit of energy
  • Czech: kilowatthodina — unit of energy
  • Danish: kilowatt-time — unit of energy
  • Danish: kilowattime — unit of energy
  • Finnish: kilowattitunti — unit of energy
  • French: kilowatt-heure — unit of energy
  • French: kilowattheure — unit of energy
  • Galician: quilowatt hora — unit of energy
  • German: Kilowattstunde — unit of energy
  • Greek: κιλοβατώρα (kilovatóra) — unit of energy
  • Hungarian: kilowattóra — unit of energy
  • Icelandic: kílóvattstund — unit of energy
  • Italian: chilowattora — unit of energy
  • Japanese: キロワット時 (kirowattoji) — unit of energy
  • Lao: ຫນ່ວຍ (nuāi) — unit of energy
  • Latvian: kilovatstunda — unit of energy
  • Macedonian: киловат-час (kilovat-čas) — unit of energy
  • Norwegian Bokmål: kilowattime — unit of energy
  • Norwegian Bokmål: kilowatt-time — unit of energy
  • Norwegian Nynorsk: kilowattime — unit of energy
  • Norwegian Nynorsk: kilowatt-time — unit of energy
  • Polish: kilowatogodzina — unit of energy
  • Portuguese: quilowatt-hora — unit of energy
  • Romanian: kilowatt-oră — unit of energy
  • Russian: килова́тт-час (kilovátt-čas) — unit of energy
  • Spanish: kilovatio-hora — unit of energy
  • Swedish: kilowattimme — unit of energy
  • Turkish: kilovat saat — unit of energy
  • Ukrainian: кілова́т-годи́на (kilovát-hodýna) — unit of energy