1 calorie = 4.186 joules

1 kilocalorie = 1 calorie = 1000 calories = 1000 calories = 4186 joules = 4.186 kilojoules.

Kilojoule is the unit of heat, joule is the international unit of heat and work done, kilojoule refers to one thousand joules, commonly used kilojoules to measure the amount of calories contained in food and the amount of calories burned per unit of time for a certain type of exercise.

Calorie (referred to as card, abbreviated as cal), by the English Calorie transliteration, which is defined as 1 atmospheric pressure, 1 gram of water to raise 1 degree Celsius of heat required is the unit of energy.

Expanded Information:

China's standards stipulate that, when the content of nutrients is lower than a certain threshold. Because it has no practical nutritional significance for the human body and the accuracy of the value is poor, it must be labeled as "0".

Such as 100 grams (or 100 milliliters) of food in the energy value of ≤ 17 kilojoules, protein, fat, carbohydrate content of ≤ 0.5 grams of sodium content of ≤ 5 milligrams, must be marked as "0". Other nutrients also have the corresponding must be labeled as "0" conditions. Since it is mandatory to label "1+4", these 5 items must be displayed on the label regardless of their content or lack thereof.

This makes it possible for one or more of the nutrients to appear as "0" on the label. In other words, a label of "0" is not an absolute absence, but is below a certain threshold.

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