How Many Kilojoules of Energy Are in Fruit?

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.

Shape Up Australia reports that the average Australian adult consumes about 8,700 kilojoules per day. A banana and an apple each contain 600 kilojoules, but at 270 grams, the apple would be more filling than would the banana at 150 grams.

The Asia Pacific Journal of Nutrition lists kilojoule measures for some other common fruits: 120 grams of cantaloupe have 65 kilojoules, 100 grams of cherries have 175 kilojoules, 100 grams of grapes have 215 kilojoules, 15 grams of lemon have 65 kilojoules, 100 grams of mango have 255 kilojoules, 130 grams of orange have 115 kilojoules, 120 grams of peaches have 135 kilojoules, 120 grams of pear have 125 kilojoules, 80 grams of pineapple have 195 kilojoules, 100 grams of plum have 145 kilojoules and 260 grams of watermelon have 45 kilojoules.