## ››Convert kilogram calorie to zettajoule

 kilogram calorie zettajoule

How many kilogram calorie in 1 zettajoule? The answer is 2.3890295761862E+17.
We assume you are converting between kilogram calorie and zettajoule.
You can view more details on each measurement unit:
kilogram calorie or zettajoule
The SI derived unit for energy is the joule.
1 joule is equal to 0.00023890295761862 kilogram calorie, or 1.0E-21 zettajoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between kilogram calories and zettajoules.
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## ››Definition: Kilogram calorie

The large calorie or kilogram calorie approximates the energy needed to increase the temperature of 1 kg of water by 1 °C. This is about 4.185 kJ, and exactly 1000 small calories.

## ››Definition: Zettajoule

The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.

So 1 zettajoule = 1021 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).

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