calories of a large muffin
Calorie Count. Large muffins are typically about 3.25 inches in diameter, and may weigh close to 140 grams. Large, prepackaged banana-nut muffins from one major brand contain 470 calories each, while a similar muffin from a major restaurant/bakery chain contains 490 calories. Sugar content may range from 35 grams to 43 grams, translating to 140 to 172 calories from sugar per muffin.