To convert a measurement in calories to a measurement in kilojoules, multiply the energy by the following conversion ratio: 0.004184 kilojoules/calorie. Since one calorie is equal to 0.004184 kilojoules, you can use this simple formula to convert: kilojoules = calories × 0.004184.

kilojoules (kJ) calories (cal) 1 kJ: 239.00573614 cal: 2 kJ: 478.01147228 cal: 3 kJ: 717.01720841 cal: 4 kJ: 956.02294455 cal: 5 kJ: 1,195.02868069 cal: 6 kJ: 1,434.03441683 cal: 7 kJ: 1,673.04015296 cal: 8 kJ: 1,912.0458891 cal: 9 kJ: 2,151.05162524 cal: 10 kJ: 2,390.05736138 cal: 20 kJ: 4,780.11472275 cal: 30 kJ: 7,170.17208413 cal: 40 kJ
1 Calories = 0.0042 Kilojoules. 10 Calories = 0.0419 Kilojoules. 2500 Calories = 10.467 Kilojoules. 2 Calories = 0.0084 Kilojoules. 20 Calories = 0.0837 Kilojoules. 5000 Calories = 20.934 Kilojoules. 3 Calories = 0.0126 Kilojoules. 30 Calories = 0.1256 Kilojoules. 10000 Calories = 41.868 Kilojoules. How many Calories are in one kiloJoule? Thermochemical Calories. 1 kJ = 239.0057 cal th. 15ºC calories. 1 kJ = 238.9201 cal 15. Large/food calories. 1 kJ =0.239 Cal.
41,840. How many kilojoules are in a Calorie? Use this easy and mobile-friendly calculator to convert between Calories and kilojoules. Just type the number of Calories into the box and hit the Calculate button.
Kilojoules8,700. The conversion factor between a kilojoule (kJ) and a calorie (also called kilocalorie, kcal, or Cal) is 0.239, because each calorie contains 4.184 kilojoules. To do the reverse operation (convert calories to kilojoules), use the calculator below this one:
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400 calories to kj