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calorie [15 °C] calorie [I.T.] calorie [nutritional] calorie [thermochemical] |

How many kilojoules in 1 calories?
The answer is 0.0041858.

We assume you are converting between **kilojoule** and **calorie [15 °C]**.

You can view more details on each measurement unit:

kilojoules or
calories

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

1 joule is equal to 0.001 kilojoules, or 0.23890295761862 calories.

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

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

Type in your own numbers in the form to convert the units!

1 kilojoules to calories = 238.90296 calories

2 kilojoules to calories = 477.80592 calories

3 kilojoules to calories = 716.70887 calories

4 kilojoules to calories = 955.61183 calories

5 kilojoules to calories = 1194.51479 calories

6 kilojoules to calories = 1433.41775 calories

7 kilojoules to calories = 1672.3207 calories

8 kilojoules to calories = 1911.22366 calories

9 kilojoules to calories = 2150.12662 calories

10 kilojoules to calories = 2389.02958 calories

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

kilojoules to inch ounce

kilojoules to joule

kilojoules to kilogram-force meter

kilojoules to megacalorie

kilojoules to kilowatt-hour

kilojoules to megaelectron volt

kilojoules to cheval vapeur heure

kilojoules to gram calorie

kilojoules to decajoule

kilojoules to attojoule

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).

15 °C calorie: the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.

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