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Kilocalorie a Kilojoule

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

Unit console

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UnitCloud es un laboratorio local de medición para uso diario, ingeniería, TI, energía, movilidad y diseño.

De1 kcal
Resultado4,184 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.

02Error común

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

03Unidad base: J

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

Tabla

KilocalorieKilojoule
14,184
100418,4
2501046
5002092
20008368

Fórmula

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

Fuentes

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

Conversiones relacionadas

Kilowatt-hour a JoulekWh → JEnergíaJoule a Kilowatt-hourJ → kWhEnergíaKilojoule a KilocaloriekJ → kcalEnergíaBritish thermal unit a Kilowatt-hourBTU → kWhEnergía

Search and practice paths

Search and practice paths

FórmulaTablaExamplesError comúnEveryday/engineeringExcel/CSVConversor por lotesPrint 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. Energía. 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.