Convert

Kilocalorie to Kilowatt-hour

Exact answer: 1 kcal = 0.001162222222 kWh (exact defined factor)

Kilocalorie and Kilowatt-hour describe the same quantity from the Energy family but come from different systems of units. The factor is defined exactly. Energy appears in electricity tariffs, food labels, heating costs and technical datasheets.

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What do you want to convert?

From100 kcal

Result0.116222 kWh

Factor1 kcal = 0.001162222222 kWh

Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

01100 kcal = 0.116222 kWh

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

02Common mistake

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

03Base unit: J

1 kcal = 4184 J. Then the value is converted through the base unit J into Kilowatt-hour.

Table

Kilocalorie to Kilowatt-hour
Kilocalorie	Kilowatt-hour
100	0.116222
500	0.581111
1,000	1.162222
2,000	2.324444
5,000	5.811111
10,000	11.622222

Formula

1 kcal = 4184 J. Then the value is converted through the base unit J into Kilowatt-hour.

Sources

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

Related conversions

Kilowatt-hour to JoulekWh → JEnergy Joule to Kilowatt-hourJ → kWhEnergy Kilocalorie to Kilojoulekcal → kJEnergy Kilojoule to KilocaloriekJ → kcalEnergy

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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 reviewed: September 2026. Energy. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Kilocalorie to Kilowatt-hour?

1 kcal = 0.001162222222 kWh

Which formula does Kilocalorie to Kilowatt-hour use?

1 kcal = 4184 J. Then the value is converted through the base unit J into Kilowatt-hour.

What is the most common mistake?

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

When should I verify the result?

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