What does 100 calories of crab (cooked) look like?

100 calories =3⅔ oz103 g · 3.6 oz
Low calorie density0.97 kcal/g
Each 🦀 = one oz (~28.3 g). The last icon shows a part of one.
Food volume for 100 kcal

Crab (cooked) has 97 calories per 100 g, so 100 calories is 3⅔ oz of crab (103 g). That's more food per calorie than most protein foods on this site (average 64 g). It's one of the better protein sources per calorie here: 19.9 g of protein per 100 kcal.

Crab (cooked): 50 to 500 calories

CaloriesGramsOuncesOz
50 kcal52 g1.8 oz1¾
100 kcal103 g3.6 oz3⅔
200 kcal206 g7.3 oz7¼
300 kcal309 g10.9 oz11
500 kcal516 g18.2 oz18

What's in 100 calories of crab (cooked)

19.9 gprotein
0.0 gcarbs
1.6 gfat
0.0 gfiber

Protein 85% Carbs 0% Fat 15% of calories

Want more food for the same 100 calories?

These give you at least 2½ times more volume than crab (cooked):

Compare with other protein foods

Food100 kcal isGrams
🦀 Crab (cooked)3⅔ oz103 g
🥚 Egg whites5¾ large egg whites192 g
⬜ Tofu (firm)1½ quarter blocks128 g
🦞 Lobster (cooked)¾ cup112 g
🫘 Refried beans½ cup111 g
🫘 Baked beans½ cup106 g
🐟 Cod (cooked)½ fillet95 g
🦃 Turkey breast (deli)6 slices94 g
🐟 Canned tuna (in water)½ can86 g
🫘 Lentils (cooked)½ cup86 g
🍤 Shrimp (cooked)15 large shrimp84 g
🫛 Edamame (shelled)½ cup83 g
🫘 Kidney beans (cooked)½ cup79 g

See all protein foods →

Questions

How much is 100 calories of crab (cooked)?

100 calories of crab (cooked) is about 103 g (3.6 oz), or roughly 3⅔ oz.

How many calories are in 100 g of crab (cooked)?

97 calories per 100 g, according to USDA FoodData Central.

Is crab good for weight loss?

Low calorie density (0.97 kcal per gram). Generous portions fit easily into a calorie budget. 100 calories also gives you 19.9 g of protein and 0.0 g of fiber.

How many calories are in one oz?

About 27 calories.

How many oz is 200 calories?

About 7¼ (206 g).

Free printable

The 100-calorie cheat sheet

One page with 300+ foods and their exact 100-calorie portions. Stick it on the fridge.

Source: USDA FoodData Central, "Crustaceans, crab, alaska king, cooked, moist heat" (FDC ID 174202). Grams for 100 kcal = 100 ÷ calories per gram. Unit weight: USDA: 3 oz = 85.0 g. Real portions vary by size, variety and preparation. Updated 2026-10-23.