So, how many calories in mushrooms? Well, it depends on the type of mushroom and whether or not you use butter of oil. Here are the calorie counts for mushrooms cooked and uncooked. Here are white/button mushrooms, shiitake mushrooms, brown mushrooms, and portobella mushrooms (sometimes spelled portabella or portabello). These examples for cooked mushrooms are either boiled/steamed/grilled/dry fried/microwaved, using no butter or oil.
So, how many calories in mushrooms if you want to add butter or oil?
Well, if you want to use cook them using butter or oil, there are:
33-34 calories in each teaspoon of butter
101 calories in each tablespoon or butter
calories in oil are a little more, depending on the type of oil
WHITE OR BUTTON MUSHROOMS, boiled/steamed/dry fried
12 calories in each ounce or 28 grams
42 calories in 3.5 ounces, or 100 grams
43.7 calories in 1 cup of pieces cooked
72 calories in 6 ounces, 170 grams
96 calories in 8 ounces, or 227 grams
UNCOOKED
6 calories in each ounce, or 28 grams, of raw mushroom
2 calories 1 small (0.3 ounce, or 10 gram) raw mushroom
4 calories in 1 medium (0.6 ounce or 18 gram) raw mushroom
4 calories in 1 large (0.8 ounce, or 23 gram) raw mushroom
15 calories in 1 cup of raw slices or pieces
21 calories in 1 cup of raw whole mushrooms
21 calories in 3.5 ounces, or 100 grams, of raw mushrooms
36 calories in 6 ounces, or 170 grams, of raw mushroom
PORTOBELLA MUSHROOMS grilled (or similar)
10 calories in each ounce, or 28 grams, of grilled/broiled
30 calories in a 3 ounce, or 85 gram, grilled/broiled
35 calories in 3.5 ounces, or 100 grams, or grilled/broiled
42 calories in 1 cup of grilled/broiled sliced
UNCOOKED
7 calories in each ounce, or 28 grams, raw
22 calories in a usual (patty size) size raw mushroom
22 calories in 1 cup of diced portobella, raw
26 calories in a 3.5 ounces, or 100 grams, raw
BROWN MUSHROOMSalso know as Swiss brown, Roman brown, Italian brown, Italian mushroom, cremini or crimini, brown cap, or chestnut mushroom)
COOKED, boiled/steamed/dry fried
12 calories in each ounce or 28 grams
42 calories in 3. 5 ounces, or 100 grams
43.7 calories in 1 cup of pieces cooked
42 calories in 1 cup of cooked sliced
72 calories in 6 ounces, 170 grams
96 calories in 8 ounces, or 227 grams
8 calories in 1 ounce, or 28 grams, cooked
30 calories in 3 ounce, or 85 grams, cooked
35 calories in 3.5 ounces, or 100 grams, cooked
UNCOOKED
6 calories in 1 ounce, or 28 grams, raw
24 calories in 1 cup of raw whole brown mushroom
18 calories in 4 raw brown mushrooms
19 calories in 1 cup of sliced raw brown mushrooms
22 calories in 3.5 ounces, or 100 grams, raw
32 calories in 6 raw brown mushrooms
43 calories in 8 raw brown mushrooms
SHIITAKE MUSHROOMS cooked
16 calories in 1 ounce, or 28 grams
40 calories for 4 whole mushrooms
56 calories in 3.5 ounces or 100 grams
81 calories in 1 cup of pieces
UNCOOKED dried shiitake mushrooms
11 calories in 1 dried shiitake mushroom
44 calories in 4 dried shiitake mushrooms
84 calories 1 ounce, or 28 grams, of dried shiitake mushrooms
296 calories on 3.5 ounces, or 100 grams of dried shiitake mushrooms
For the free calorie charts showing how many calories you should have in total per day for all foods, and for the Calories in Vegetables Chart, and the Calories in Fruit Chart, see the page links given below. Use the charts as daily guides for weight loss, or weight maintenance once you have reached your target weight.