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Kilojoules to Kilocalories conversion

Kilojoules (kJ) to Kilocalories (kcal) energy conversion calculator and how to convert.

Small & large calories

Small calorie (cal) is the energy needed to increase 1 gram of water by 1°C at a pressure of 1 atmosphere.

Large calorie (Cal) is the energy needed to increase 1 kg of water by 1°C at a pressure of 1 atmosphere.

Large calorie is also called food calorie and is used as a unit of food energy.

How to convert Kilojoules to Kilocalories:

One kilocalorie is equal to 4.184 kilojoules.

1 kcalth = 4.184 kJ

Formula:

The energy conversion from kJ to kcal is given by the formula:

The energy in kilocalories E(kcal-th) is equal to the energy in kilojoules E(kJ) divided by 4.184:

E(kcal) = E(kJ) / 4.184
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