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# What are kilojoules?

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A kilojoule is a unit of energy. Kilojoules measure the amount of energy in foods, which depends on the amount of carbohydrates, proteins and fats in the food. Kilojoules also measure the amount of energy a body burns when moving about or exercising.

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Energy in food and the body can also be measured with the calorie, often called the large or nutritional calorie. A kilojoule is equal to .24 large Calories. This is different than the small or gram calorie, which is commonly used by scientists to measure the amount of energy required to heat water. There are 1000 small calories in one large Calorie.

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## Related Questions

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Fruits range from about 110 kilojoules per 100 grams for low-sugar fruits such as berries to 1,055 kilojoules per 35 grams for high-sugar fruits such as dates. The kilojoule is a measure of the energy a food or drink contains.

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A yard of fabric has 36 inches. Fabric is measured by yards or whole "bolts," depending on the project size it is being used for.

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One kilojoule is equal to 1,000 joules of expended energy. The "kilo" prefix refers to a multiple of 1,000 of whatever unit is being expressed. Hence, 1 kilometer equals 1,000 meters and 1 kilogram equals 1,000 grams. To convert units is a matter of multiplying by a factor of 1,000.