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How are calories converted to calories?1KJ equals how many calories?

1 kilojoule (KJ) = 0.239 kilocalorie (KCAL)

1 kilocalorie (KCAL) = 4.184 kilojoules (KJ)

Adult males with light to moderate physical labor need 2400-2700kcal per day; females with light to moderate physical labor need 2100-2300kcal per day; infants, children and adolescents, pregnant and lactating mothers, and the elderly all have different physiological characteristics and need different energy.

Adults, children and adolescents, pregnant women and breastfeeding mothers, and the elderly each have different physiological characteristics, and their energy needs are not the same.

Adults' daily caloric needs

Men: 9250-10090 kilojoules

Women: 7980-8820 kilojoules

Note: Daily calories provided by food should be not less than 5000 kilojoules - 7500 kilojoules, which is the minimum amount of energy needed to maintain the body's normal life activities

Adults' daily energy needs are 2100-2300 kilojoules.

Expanded Information:

Calories (abbreviated as calories, abbreviated as cal). Calorie, abbreviated as cal), from the English Calorie phonetic translation, which is defined as the heat required to raise 1 gram of water by 1 degree Celsius under 1 atmospheric pressure; calorie (calorie) is the unit of energy, which is still widely used in nutritional measurements and fitness manuals, and the international standard unit of energy is the joule (joule). As the legal unit of food calories, the joule is commonly used in Europe and the calorie in the United States. Although the joule is the legal unit of measurement in China and Taiwan, however, calories are still widely used in China and Taiwan due to the tradition they follow.

Calorie, is a unit of energy. We tend to associate calories with food, but they actually apply to any substance that contains energy.

Simply put, one calorie of energy or heat raises the temperature of one gram of water at one atmosphere by one degree C. One calorie is equal to about 4.186 joules (a joule is a unit of energy commonly used in physics).

References:

Baidu Encyclopedia- Calories