Question: In terms of average size, how many calories are there in a banana?
Answer: The average size banana (around 100g in weight) contains about 95 calories.
A smaller banana weighing 80g will hold around 75 calories and a large 120g banana contains around 115. These figures only count the insides of the fruit of course and not the peel.
Bananas are a rich source of dietary fiber and potassium, they also provide a source of many other important vitamins and minerals.