Koverts/Energy/kcal → kJ
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Kilocalorie (kcal) to Kilojoule (kJ)

1 kcal = 4.184 kJ · Free instant converter, no signup required.

Direct Answer

1 kcal = 4.184 kJ

Formula: kJ = kcal × 4.184. This page supports instant conversion, reference table checks, and related unit links.

About this conversion

This Koverts page converts Kilocalorie (kcal) to Kilojoule (kJ). It uses the same rules as our Energy Converter — reliable Energy conversions, free and instant.

Kilocalorie (kcal) and Kilojoule (kJ) are units used in Energy Converter. Enter a value above to convert Kilocalorie (kcal) into Kilojoule (kJ) using the standard relationship for this category.

Kilojoule (kJ) is the target unit on this page. Results come from Kilocalorie (kcal) using the same rules as the calculator and the reference table below.

Typical uses

  • Compare Kilocalorie (kcal) and Kilojoule (kJ) for everyday estimates and planning
  • Use with homework, DIY projects, and hobby measurements
  • Read international labels, manuals, and product specs with less guesswork
  • Educational reference only — verify medical, legal, or engineering use with authoritative sources
FormulakJ = kcal × 4.184

Common reference values

  • 1 kcal = 4.184 kJ
  • 10 kcal = 41.84 kJ
  • 100 kcal = 418.4 kJ

Tip: 1 kcal equals 4.184 kJ. Multiply your amount by 4.184 to convert from kcal to kJ.

Did you know? Koverts keeps conversion math transparent: you see the factor, the table, and the same rules everywhere on the page.

Educational reference — always verify critical measurements (medical, engineering, legal) with primary sources.

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Result

4.184kJ

1 kcal = 4.184 kJ

Popular conversions

// kilocalorie Conversion table kilojoule

Kilocalorie (kcal) (kcal)Kilojoule (kJ) (kJ)
1 kcal4.184 kJ
2 kcal8.368 kJ
5 kcal20.92 kJ
10 kcal41.84 kJ
20 kcal83.68 kJ
25 kcal104.6 kJ
50 kcal209.2 kJ
100 kcal418.4 kJ
250 kcal1,046 kJ
500 kcal2,092 kJ
1000 kcal4,184 kJ

How to convert

Kilocalorie (kcal) → Kilojoule (kJ)

To convert from Kilocalorie (kcal) (kcal) to Kilojoule (kJ) (kJ)，multiply your value by 4.184.

kJ = kcal × 4.184

For example，10 kcal = 41.84 kJ.

// Frequently Asked Questions

How accurate is this converter?▼
Koverts applies standard conversion relationships for Energy. Always double-check results that affect health, safety, contracts, or compliance.
Can I convert other units in this category?▼
Yes. Open the category page or change the “from” and “to” units in the converter to explore every supported pair.
What is 1 kcal in kJ?▼
1 kcal = 4.184 kJ.
How is the conversion calculated?▼
kJ = kcal × 4.184.
Can I convert other values?▼
Yes. Use the converter box above to enter any value and get instant results.

// Related conversions

kcal → J

Joule (J)

kcal → cal

Calorie (cal)

kcal → Wh

Watt-hour (Wh)

kcal → kWh

Kilowatt-hour (kWh)