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Kilowatt-hour en Joule

Food calories are kilocalories. Utility bills use kilowatt-hours. Both are energy units, but in different contexts.

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De1 kWh
Résultat3 600 000 J
Factor1 kWh = 3 600 000 J
Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

011 kWh = 3 600 000 J

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Erreur fréquente

Food calories are kilocalories. Utility bills use kilowatt-hours. Both are energy units, but in different contexts.

03Unité de base: J

1 kWh = 3,600,000 J. Then the value is converted through the base unit J into Joule.

Tableau

Kilowatt-hourJoule
13 600 000
1036 000 000
100360 000 000
3 50012 600 000 000

Formule

1 kWh = 3,600,000 J. Then the value is converted through the base unit J into Joule.

Sources

BIPM SI BrochureSI base units, prefixes and official SI context.NIST Guide to SI Appendix BNIST conversion-factor method and non-SI factors.

Conversions liées

Joule en Kilowatt-hourJ → kWhÉnergieKilocalorie en Kilojoulekcal → kJÉnergieKilojoule en KilocaloriekJ → kcalÉnergieBritish thermal unit en Kilowatt-hourBTU → kWhÉnergie

Search and practice paths

Search and practice paths

FormuleTableauExamplesErreur fréquenteEveryday/engineeringExcel/CSVConvertisseur par lotPrint view
kWhEnergy prices, kWh and technical work
Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources current as of May 2026. Énergie. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Kilowatt-hour en Joule?

1 kWh = 3 600 000 J

Which formula does Kilowatt-hour en Joule use?

1 kWh = 3,600,000 J. Then the value is converted through the base unit J into Joule.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.