Calories to Kilocalories conversion

Calories (Cal) 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 Calories to Kilocalories:

1 gram calorie is equal to 0.001 kilocalories.

1 cal = 0.001 kcal


Formula:

The energy in small kilocalories (kcal) to small calories (cal) is given by the formula:

E(kcal) = E(cal) / 1000


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