How do I convert pounds to kg for any ingredient?

Converting pounds to kg is pure weight maths that applies to any food, not just portobello mushroom, so 1 pound is always 0.45 kg. For other amounts, or to add kilograms and stone, the weight converter at the link below handles grams, ounces and pounds in both directions.

Convert Portobello Mushroom from Pounds to Kilograms

Portobello Mushroom converter

Use the tool below to convert portobello mushroom from Pounds to Kilograms.

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 many kg is a pound of portobello mushrooms?

A pound of portobello mushrooms is 0.45 kg. This is a pure weight conversion, the same for any food, so the ratio never changes with size or density. Use the converter above for any amount, or the weight converter linked below to add kilograms and stone.

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

0.45 kg

Common Portobello Mushroom conversions

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

Pounds	Kilograms
0.5 lb	0.23 kg
1 lb	0.45 kg
1.5 lb	0.68 kg
2 lb	0.91 kg
3 lb	1.36 kg

Portobello Mushroom conversion chart

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

lb	kg	portobello mushrooms	cups	cups (US)	g	oz
0.5 lb	0.23 kg	1.89 portobello mushrooms	2.52 cups	2.64 cups (US)	226.8 g	8 oz
1 lb	0.45 kg	3.78 portobello mushrooms	5.04 cups	5.27 cups (US)	453.59 g	16 oz
2 lb	0.91 kg	7.56 portobello mushrooms	10.08 cups	10.55 cups (US)	907.18 g	32 oz
3 lb	1.36 kg	11.34 portobello mushrooms	15.12 cups	15.82 cups (US)	1360.78 g	48 oz
5 lb	2.27 kg	18.9 portobello mushrooms	25.2 cups	26.37 cups (US)	2267.96 g	80 oz

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 many kg is a pound of portobello mushrooms?: A pound of portobello mushrooms is 0.45 kg. This is a straight weight conversion, so half (0.5 pounds) is 0.23 kg and double (2 pounds) is 0.91 kg. The ratio never changes with portobello mushroom size or density, so the same figure works for any quantity you measure. Open the portobello mushroom converter
How do I convert pounds to kg for any ingredient?: Converting pounds to kg is pure weight maths that applies to any food, not just portobello mushroom, so 1 pound is always 0.45 kg. For other amounts, or to add kilograms and stone, the weight converter at the link below handles grams, ounces and pounds in both directions. Pounds to kg converter
Which portobello mushroom variety should I use?: 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.

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