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Online Calculators & Tools

kcal to kilojoules conversion

Select calorie unit type:
  
Energy result in kilojoules:kJ

How to convert from kcal to kilojoules

Thermochemical / food kilocalories to kilojoules

1 kcalth = 4.184 kJ

The energy in kilojoules E(kJ) is equal to 4.184 times the energy in thermochecmical / food kilocalories E(kcal):

E(kJ) = 4.184 × E(kcal-th)

 

kJ to kcal conversion