转换

Kilocalorie to Kilojoule

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

Unit console

用公式、语境和精度转换单位

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1 kcal
结果4.184 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.

02常见错误

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

03基准单位: J

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

表格

KilocalorieKilojoule
14.184
100418.4
2501,046
5002,092
2,0008,368

公式

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

来源

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

相关转换

Search and practice paths

Search and practice paths

公式表格Examples常见错误Everyday/engineeringExcel/CSV批量转换器Print view
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. 能量. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Kilocalorie to Kilojoule?

1 kcal = 4.184 kJ

Which formula does Kilocalorie to 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.