First of all, we must know what kind of apple, such as red Fuji, dry apple ...... calories of each kind of apple is not the same; secondly, we must know how much the weight of an apple is, before there is a way to calculate. Red apple: only less than 62 calories per 100G; green apple: only less than 55 calories per 100g Cucumber: 15 calories Generally speaking, the calories of 100ml yogurt is 72kcal Tomatoes have 25kcal per 100g The calories of banana is 91kcal in 100g edible part.