500g Cooked Seaweed to Raw Weight

500 g of cooked seaweed starts as about 500 g of raw seaweed.

Food labels usually list raw values, so converting back helps when you weigh food after cooking. Both amounts have 205 calories. The ratio comes from USDA calorie density of the raw and cooked forms.

Cooked Seaweed Calorie Calculator

AmountUnit

205cal

in 500g of cooked seaweed (500 g)

Protein18 g28% of calories

Fat2.5 g9% of calories

Carbs40 g63% of calories

10% of a 2,000 calorie day

Your meal

Add portions from any food page to build a meal total. It stays in this browser.

Cooked Seaweed to Raw Seaweed weight chart

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

Cooked Seaweed	Raw 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

Cooked Seaweed calories by serving size

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

Serving	Weight	Calories	Protein	Fat	Carbs
50g	50 g	21	1.8 g	0.2 g	4 g
1/2 cup	50 g	21	1.8 g	0.2 g	4 g
100g	100 g	41	3.5 g	0.5 g	7.9 g
1 cup	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

Cooked Seaweed vs similar foods

Calories per 100 g compared with other vegetables.

Raw Irishmoss Seaweed49

Cooked Seaweed41

Cooked Seaweed: common questions

How much raw seaweed makes 500g cooked?

About 500 g raw.

How many calories are in 500g of cooked seaweed?

500 g of cooked seaweed has 205 calories.

More about cooked seaweed

Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID No added fat: 2709989. Original description: Seaweed, cooked, no added fat. Portion weights are USDA household measures.