Two baked potatoes topped with cheddar cheese and sour cream contain around 1,080 calories. This amount assumes that each potato has 1 ounce of cheese.
A baked potato with the skin and without any toppings has 115 calories, according to the U.S. Department of Agriculture food database. Cheese adds another 115 calories per ounce, and sour cream provides 23 calories per tablespoon or 444 calories per cup.
The USDA calorie content of a baked potato estimates about 3/4 cup serving of sour cream. Fat-free sour cream comes in at 170 calories a cup, shearing about 300 calories off the meal.