1 kcal equals 1 kcal, 1 kcal equals 1000 kcal. 500 calories = 500,000 calories. Cal, also known as capital letter C, is most commonly used in food labels, which is equivalent to the energy required to raise 1 kg of water 1 degree at standard atmospheric pressure. 1 calorie = 4. 185 joules. Small cards, also known as CAL, are common in scientific research literature.10000.

Just as computers consume electricity and trucks consume oil, so do human daily activities. Heat not only provides energy for people's exercise, daily work and life, but also provides energy for human life activities, blood circulation, breathing, digestion and absorption. People who lose weight can burn fat through exercise, which can accelerate calorie consumption and achieve the goal of healthy weight loss.

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Because calories are a small unit, it is inconvenient to use, just like millimeters are a small unit. When we say that someone is 1.6 meters tall, we will never say that this person is 1600 mm tall. So most people say that a food contains dozens of calories, or exercise can consume dozens of calories.

It is precisely because calorie is a very, very small unit of calories that it is not convenient to use directly, so we enlarge it by 1000 times and express it in kilocalories. Many times, we see that kcal, kcal and kcal are mixed and used indiscriminately. Usually, for example, the calorie of a cake is 100 calories, which is definitely wrong. A cake can't have that few calories, it should be 100 calories, which is 65400 calories.

References:

Baidu encyclopedia-calories