Calories in 1 Raw Blue Crab
1 raw blue crab (21 g) has 18 calories. That is 1% of a 2,000 calorie diet.
The calories come from 3.8 g of protein, 0.2 g of fat and 0 g of carbohydrates, a split of 88% protein, 12% fat and 0% carbs. For comparison, 2 raw blue crab has 37 calories. Burning 18 calories takes about 3 minutes of brisk walking or 1 minute of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
Raw Blue Crab Calorie Calculator
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Raw Blue Crab calories by serving size
Common amounts of raw blue crab with calories and macros. Tap a row for its full nutrition page.
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 1 raw blue crab | 21 g | 18 | 3.8 g | 0.2 g | 0 g |
| 1 oz | 28 g | 25 | 5.1 g | 0.3 g | 0 g |
| 2 raw blue crab | 42 g | 37 | 7.6 g | 0.5 g | 0 g |
| 50g | 50 g | 44 | 9 g | 0.5 g | 0 g |
| 100g | 100 g | 87 | 18 g | 1.1 g | 0 g |
| 4 oz | 113 g | 99 | 20 g | 1.2 g | 0 g |
| 200g | 200 g | 174 | 36 g | 2.2 g | 0.1 g |
Raw Blue Crab vs similar foods
Calories per 100 g compared with other fish and seafood.
Raw Blue Crab: common questions
How many calories are in 1 raw blue crab?
1 raw blue crab weighs about 21 g and has 18 calories.
How much protein is in 1 raw blue crab?
1 raw blue crab has 3.8 g of protein, which is 8% of the 50 g Daily Value.
How many carbs are in 1 raw blue crab?
1 raw blue crab has 0 g of carbohydrates, including 0 g of fiber.
How much raw blue crab is 100 calories?
100 calories of raw blue crab is 115 g, about 5 1/2 raw blue crab.
More about raw blue crab
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Weights and conversions
Source: USDA FoodData Central, SR Legacy. FDC ID 174204. Original description: Crustaceans, crab, blue, raw. Portion weights are USDA household measures.