How many cups is one medium portobello mushroom?

One medium portobello mushroom is 1.33 cups. The conversion scales in a straight line, so 2 portobello mushrooms is 2.67 cups and 3 portobello mushrooms is 4 cups. Multiply or divide that figure to match whatever your recipe needs, or use the converter above for an exact reading at any amount.

How many grams is one medium portobello mushroom?

One medium portobello mushroom weighs about 120 grams. A small one is about 80 grams and a large one about 200 grams, so set the size selector to match what you actually have. The converter above and the chart below cover all sizes and units for any amount.

Convert Portobello Mushroom from Whole Portobello mushrooms

Portobello Mushroom converter

Use the tool below to convert portobello mushroom from Whole Portobello mushrooms to the measurement that you need.

A small portobello cap is well under half the weight of a giant burger-sized one, so 'four portobellos' on the grill can swing the yield a lot. Pick the right size below to keep burgers, fajitas, and stuffing on target.

How much is one medium portobello mushroom?

One medium portobello mushroom is 1.33 cups, about 120 grams. 2 portobello mushrooms is 2.67 cups and 3 portobello mushrooms is 4 cups. Use the converter below for any amount.

Got white button or cremini? Those are smaller (10–27 g whole). See our Mushroom converter.

Enter an amount, pick your units, and set the size for counting whole portobello mushrooms.

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Portobello mushroom sizeSize applies to whole portobello mushrooms (small / medium / large).

Result

1.33 cups

Common Portobello Mushroom conversions

Quick reference for portobello mushroom at medium size. Switch the size in the converter above for small or large.

portobello mushrooms	Cups (chopped)
1 portobello mushroom	1.33 cups
2 portobello mushrooms	2.67 cups
3 portobello mushrooms	4 cups
4 portobello mushrooms	5.33 cups
5 portobello mushrooms	6.67 cups
6 portobello mushrooms	8 cups

Portobello Mushroom conversion chart

The chart below shows how whole portobello mushrooms (medium size) convert to cups, grams and ounces.

portobello mushrooms	cups	cups (US)	g	oz	lb	kg
1 portobello mushroom	1.33 cups	1.4 cups (US)	120 g	4.23 oz	0.26 lb	0.12 kg
2 portobello mushrooms	2.67 cups	2.79 cups (US)	240 g	8.47 oz	0.53 lb	0.24 kg
3 portobello mushrooms	4 cups	4.19 cups (US)	360 g	12.7 oz	0.79 lb	0.36 kg
4 portobello mushrooms	5.33 cups	5.58 cups (US)	480 g	16.93 oz	1.06 lb	0.48 kg
5 portobello mushrooms	6.67 cups	6.98 cups (US)	600 g	21.16 oz	1.32 lb	0.6 kg

Portobello Mushroom varieties and best uses

The conversions above are the same whatever variety you use; the difference is what each is good for. Here is how the common portobello mushroom varieties compare.

Variety	Best for
Portobello (Standard)	Burgers, grilling, and stuffing: mature brown cap with deep gills, dense and meaty when cooked.
King Oyster	Vegan scallops and steaks: thick white stems that take a sear; closest meaty substitute when portobello is out.
Lion's Mane	Vegan crab cakes and steak swaps: shaggy white clusters that pull apart into a tender, almost seafood-like texture.

Which should I pick?

For burgers, grilling, and stuffing, the standard mature Portobello cap is the pick: dense, meaty flesh that holds up under heat. No portobello? Thick-cut King Oyster gives a similarly meaty bite. For a vegan steak swap, Lion's Mane has a tender, almost crab-like texture.

Frequently Asked Questions

How much is one medium portobello mushroom?: One medium portobello mushroom is 1.33 cups, or 120 grams. The ratio is fixed, so 2 portobello mushrooms is 2.67 cups and 3 portobello mushrooms is 4 cups. Use the converter above for any amount, or the chart below for the most common quantities. Open the portobello mushroom converter
How many cups is one medium portobello mushroom?: One medium portobello mushroom is 1.33 cups. The conversion scales in a straight line, so 2 portobello mushrooms is 2.67 cups and 3 portobello mushrooms is 4 cups. Multiply or divide that figure to match whatever your recipe needs, or use the converter above for an exact reading at any amount.
How many grams is one medium portobello mushroom?: One medium portobello mushroom weighs about 120 grams. A small one is about 80 grams and a large one about 200 grams, so set the size selector to match what you actually have. The converter above and the chart below cover all sizes and units for any amount.

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