Question: how many calories are in a large bucket of popcorn?
Answer: Size Matters. A bucket of popcorn contains 20 cups. A bucket of air-popped popcorn contains 611 calories and 6.72 grams of fat, according to the USDA Nutrient Database. A bucket of oil-popped popcorn contains 1,100 calories and 61.82 grams of fat.