Calories in Potatoes. The favorite choice for the term Potatoes is 1 medium White Potato (Flesh and Skin) which has about 150 calories. Calorie and nutritional information for a variety of types and serving sizes of Potatoes is shown below. View other nutritional values (such as Carbs or Fats) using the filter below: Calories|Total Carbs|Total Fats|Protein|Sodium|Cholesterol|Vitamins.