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Kilojoules to Calories conversion FullScreen

Kilojoules to calories conversion is the process of converting energy values from kilojoules (kJ) to calories. To convert kilojoules to calories, you need to multiply the value in kilojoules by the conversion factor 239.0057.

kJ
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Energy result in calories:


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What is Kilojoules to Calories conversion

To convert kilojoules (kJ) to calories (cal), you can use the conversion factor 239.006.

Calories = kJ * 239.006

For example, let's convert 10 kilojoules to calories:

Calories = 10 kJ * 239.006 Calories ≈ 2,390.06 cal

Therefore, 10 kilojoules is approximately equal to 2,390.06 calories.

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 from kilojoules to calories

Kilojoules to thermochemical calories

1 calth = 0.004184 kJ

1 kJ = 239.0057 calth

The energy in thermochemical calories E(calth) is equal to the energy in kilojoules E(kJ) times 239.0057:

E(cal) = E(kJ) × 239.0057

Example

Convert 0.6 kilojoules to thermochemical calories.

E(cal) = 0.6kJ × 239.0057 = 143.4 calth

Kilojoules to 15°C calories

1 cal15 = 0.0041855 kJ

1 kJ = 238.9201 cal15

The energy in 15°C calories E(cal15) is equal to the energy in kilojoules E(kJ) times 238.9201:

E(cal15) = E(kJ) × 238.9201

Example

Convert 0.6 kilojoules to 15°C calories.

E(cal15) = 0.6kJ × 238.9201 = 143.352 cal15

Kilojoules to large/food calories

1 Cal = 4.184 kJ

1 kJ = 0.239 Cal

The energy in large/food calories E(Cal) is equal to the energy in kilojoules E(kJ) times 0.239:

E(Cal) = E(kJ) × 0.239

Example

Convert 0.6 kilojoules to food calories.

E(Cal) = 0.6kJ × 0.239 = 0.1434 Cal