ucUnitCloudInternational unit matrix

Converti

Kilocalorie a Kilojoule

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

Unit console

Convertire unità con formula, contesto e precisione

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Da1 kcal
Risultato4,184 kJ
Factor1 kcal = 4,184 kJ
Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

011 kcal = 4,184 kJ

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

02Errore comune

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

03Unità base: J

1 kcal = 4184 J. Then the value is converted through the base unit J into Kilojoule.

Tabella

KilocalorieKilojoule
14,184
100418,4
2501046
5002092
20008368

Formula

1 kcal = 4184 J. Then the value is converted through the base unit J into Kilojoule.

Fonti

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

Conversioni collegate

Kilowatt-hour a JoulekWh → JEnergiaJoule a Kilowatt-hourJ → kWhEnergiaKilojoule a KilocaloriekJ → kcalEnergiaBritish thermal unit a Kilowatt-hourBTU → kWhEnergia

Search and practice paths

Search and practice paths

FormulaTabellaExamplesErrore comuneEveryday/engineeringExcel/CSVConvertitore batchPrint 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. Energia. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Kilocalorie a Kilojoule?

1 kcal = 4,184 kJ

Which formula does Kilocalorie a Kilojoule use?

1 kcal = 4184 J. Then the value is converted through the base unit J into Kilojoule.

When should I verify the result?

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