kcal to Joule conversion

With the tool on the page, you can automatically translate between kcal and Joule weight measurements. The conversion process you will make works automatically based on the kcal joule conversion formula. To perform the conversion, simply enter the value you want in the box below and press the “Convert” button. The result will appear immediately below.

kcal to Joule conversion

  • Energy in calories
  • Calorie Unit Type
  • Convert
  • Conversion result
  • J

How to convert from kcal to Joules?

Things to consider when choosing a calorie unit type:

  • Small calorie (cal) is the energy required to raise 1 gram of water by 1°C at 1 atmosphere of pressure.
  • Large calorie (Cal) is the energy required to raise 1 kg of water at 1 atmosphere pressure by 1°C.
  • Large calorie is also called food calorie and is used as a unit of food energy.

Thermochemical / food kilocalorie to joule

1 kcalth = 4184 J

International kilocalorie joules

1 kcalIT = 4186.8 J

15 ° C kilocalories – joules

1 kcal 15 = 4185.5 J

Kcal Joule conversion formula

Energy in joules E (J) is equal to 4184 times the energy of thermochemical / food kilocalories E (kcal):

E (J) = 4184 × E (kcal-th)

Energy in joules E (J) is equal to 4186.8 times the energy in international kilocalories E (kcal-IT):

E (J) = 4186.8 × E (kcal-IT)

Energy in joules E (J) is equal to 4185.5 times the energy in 15 ° C kilocalories E (kcal15):

E (J) = 4185.5 × E (kcal15)


Converting 0.3 kcalth to joules:

E (J) = 4184 × 0.3 k health = 1255.2 J

Converting 0.3 kcalIT to joules:

E (J) = 4186.8 × 0.3kcalIT = 1256.04 J

Converting 0.3 kcal15 to joules:

E (J) = 4185,5 × 0,3kcal15 = 1255,65 J

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