How Many Calories Are in Popcorn?

The amount of calories in popcorn depends on the type of popcorn, how it was popped and if it contains seasonings or butter. Three cups of air-popped popcorn contain around 92 calories.

Air-popped popcorn is the lightest way to prepare popcorn. It is light and fluffy and doesn't contain extra additives like microwave popcorn. For 3 cups of air-popped popcorn with nothing added, there is just over 1 gram of fat, no cholesterol, only 2 mg of sodium, 18.7 grams of carbohydrates, 0.2 gram of sugar and 3.1 grams of protein. There is also a small amount of vitamin A and iron.