It is the same. There is no difference between a thousand calories and a thousand calories. One thousand calories is another name for one thousand calories, and the two are equal.

Calories are units of energy. We often associate calories with food, but in fact they apply to anything that contains energy. For example, 4 liters of gasoline contains about 3 10/00000 calories. With the heat in the 2 17 Big Mac, you can drive 35 kilometers. Simply put, 1 calorie of energy or heat can raise the temperature of 1 gram of water by 1 degree Celsius at one atmospheric pressure. 1 calorie is approximately equal to 4. 186 joules (joules are commonly used units of energy in physics).