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How many kJ in 1 Cal?
The answer is 0.0041868.

We assume you are converting between **kilojoule** and **calorie [I.T.]**.

You can view more details on each measurement unit:

kJ or
Cal

The SI derived unit for **energy** is the joule.

1 joule is equal to 0.001 kJ, or 0.238845896627 Cal.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between kilojoules and calories.

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You can do the reverse unit conversion from Cal to kJ, or enter any two units below:

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The SI prefix "kilo" represents a factor of
10^{3}, or in exponential notation, 1E3.

So 1 kilojoule = 10^{3} joules.

The definition of a joule is as follows:

The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).

International Steam Table Calorie (1956): 1.163 mW h = 4.1868 J exactly. This definition was adopted by the Fifth International Conference on Properties of Steam (London, July 1956).

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