Kilocalorie to Kilojoule Converter

Enter a value to calculate the result instantly and free of charge.

kcal
4.184kJ

1 kcal = 4.184 kJ

Conversion summary

1 kcal = 4.184 kJ

Formula
Kilojoule = Kilocalorie × 4.184
Category
Energy and Power
Units
kcalkJ

How do you convert kilocalorie to kilojoule?

To convert kilocalorie to kilojoule, multiply the kilocalorie value by 4.184. One kcal is equal to 4.184 kJ.

Conversion formula

Kilojoule = Kilocalorie × 4.184

Kilocalorie to Kilojoule conversion table

KilocalorieKilojoule
1 kcal4.184 kJ
50 kcal209.2 kJ
100 kcal418.4 kJ
200 kcal836.8 kJ
500 kcal2,092 kJ
1,000 kcal4,184 kJ
2,000 kcal8,368 kJ

What is Kilocalorie?

The kilocalorie (food Calorie) is the unit actually used on food nutrition labels.

Short history of Kilocalorie

What is labeled "Calorie" on food packaging is actually a kilocalorie.

Open the Kilocalorie unit guide

What is Kilojoule?

The kilojoule is equal to 1,000 joules, used to express larger energy values practically.

Short history of Kilojoule

Common in nutrition labeling as an alternative to calories for expressing food energy.

Open the Kilojoule unit guide

Frequently asked questions

How precise are the results?

Conversion results are calculated to 12 significant figures. Very large or very small values are shown in scientific notation.

Is the Kilocalorie to Kilojoule converter free?

Yes. The conversion tool on BirimCeviri.app is free and requires no sign-up.

Sources

The definitions and conversion relationships on this page are aligned with standard metrology and SI reference material.

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: NIST Guide to the SI — Appendix B.8: Factors for Units Listed Alphabetically (horsepower, watt-hour dahil)
  3. NIST: Guide to the SI — Conversion Factors

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