500g Raw Seaweed Cooked Weight

500 g of raw seaweed becomes about 500 g of cooked seaweed.

It absorbs water and gains about 0% in weight, while the calories stay the same. Both amounts have 205 calories. We estimate the yield from USDA calorie density of the raw and cooked forms, so real results depend on cooking time and method.

Raw Seaweed Calorie Calculator

AmountUnit

205cal

in 500g of raw seaweed (500 g)

Protein18 g28% of calories

Fat2.5 g9% of calories

Carbs40 g63% of calories

10% of a 2,000 calorie day

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Raw Seaweed to Cooked Seaweed weight chart

Calories stay the same when water cooks out or soaks in, so the same calories sit in a different weight. See Cooked Seaweed nutrition.

Raw Seaweed	Cooked Seaweed	Calories
50 g	50 g	21
100 g	100 g	41
150 g	150 g	62
200 g	200 g	82
250 g	250 g	103
300 g	300 g	123
400 g	400 g	164
500 g	500 g	205
750 g	750 g	308
1000 g	1000 g	410

Raw Seaweed calories by serving size

Common amounts of raw seaweed with calories and macros. Tap a row for its full nutrition page.

Serving	Weight	Calories	Protein	Fat	Carbs
1/2 cup	40 g	16	1.4 g	0.2 g	3.2 g
50g	50 g	21	1.8 g	0.2 g	4 g
1 cup	80 g	33	2.8 g	0.4 g	6.4 g
100g	100 g	41	3.5 g	0.5 g	7.9 g
4 oz	113 g	46	4 g	0.6 g	9 g
200g	200 g	82	7 g	1 g	16 g

Raw Seaweed vs similar foods

Calories per 100 g compared with other vegetables.

Raw Irishmoss Seaweed49

Raw Seaweed41

Raw Seaweed: common questions

How much does 500g of raw seaweed weigh cooked?

About 500 g once cooked.

How many calories are in 500g of raw seaweed?

500 g of raw seaweed has 205 calories.

More about raw seaweed

Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2709805. Original description: Seaweed, raw. Portion weights are USDA household measures.