Calories in 3 Claws of Crab
3 claws of crab (45 g) has 37 calories. That is 2% of a 2,000 calorie diet.
The calories come from 8 g of protein, 0.3 g of fat and 0 g of carbohydrates, a split of 91% protein, 9% fat and 0% carbs. For comparison, 2 claws of crab has 25 and 4 claws of crab has 50 calories. Burning 37 calories takes about 7 minutes of brisk walking or 3 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
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Crab calories by serving size
Common amounts of crab with calories and macros. Tap a row for its full nutrition page.
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 1 leg | 15 g | 12 | 2.7 g | 0.1 g | 0 g |
| 1 claw | 15 g | 12 | 2.7 g | 0.1 g | 0 g |
| 1 oz | 28 g | 24 | 5.1 g | 0.2 g | 0 g |
| 2 legs | 30 g | 25 | 5.4 g | 0.2 g | 0 g |
| 2 claws | 30 g | 25 | 5.4 g | 0.2 g | 0 g |
| 1 crab | 40 g | 33 | 7.2 g | 0.3 g | 0 g |
| 3 claws | 45 g | 37 | 8 g | 0.3 g | 0 g |
| 50g | 50 g | 42 | 8.9 g | 0.4 g | 0 g |
| 1/2 cup | 68 g | 56 | 12 g | 0.5 g | 0 g |
| 2 crab | 80 g | 66 | 14 g | 0.6 g | 0 g |
| 100g | 100 g | 83 | 18 g | 0.7 g | 0 g |
| 4 oz | 113 g | 94 | 20 g | 0.8 g | 0 g |
| 1 cup | 135 g | 112 | 24 g | 1 g | 0 g |
| 200g | 200 g | 166 | 36 g | 1.5 g | 0 g |
Crab vs similar foods
Calories per 100 g compared with other fish and seafood.
Crab: common questions
How many calories are in 3 claws of crab?
3 claws of crab weighs about 45 g and has 37 calories.
How much protein is in 3 claws of crab?
3 claws of crab has 8 g of protein, which is 16% of the 50 g Daily Value.
How many carbs are in 3 claws of crab?
3 claws of crab has 0 g of carbohydrates, including 0 g of fiber and 0 g of sugars.
How much crab is 100 calories?
100 calories of crab is 120 g, about 3 crab.
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Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2706344. Original description: Crab. Portion weights are USDA household measures.