Although fruit is relatively low in calories compared to processed foods some fruits are lower in calories than others. Here�۪s a list of fruit in comparison to one another. All of these caloric amounts are rough estimates, and vary based on the specific size and type of fruit. Lower calorie fruits are peaches at 35 calories each, plums at 30 calories each, Pears for around 45 calories, 100 grams of blueberries are only 50 calories, apples are less than 50 calories, �_ a cup of strawberries is 23 calories, �_ a cup of starfruit or �_ of apricots: 17 calories and one cup of watermelon is 45 calories.