calories in 1 cup of white mushrooms
WHITE OR BUTTON MUSHROOMS, boiled/steamed/dry fried. 1  12 calories in each ounce or 28 grams. 2  42 calories in 3.5 ounces, or 100 grams. 3  43.7 calories in 1 cup of pieces cooked.  72 calories in 6 ounces, 170 1  grams. 96 calories in 8 ounces, or 227 grams.