Food calories · USDA data
Calories in crab
71 calories
in 3 oz, 85 g
- Protein
- 15.2 g
- Carbs
- 0 g
- Fat
- 0.6 g
- Fiber
- 0 g
Crab has 71 calories. That is USDA's figure for 3 oz, which weighs 85 g. Per 100 g, crab has 83 calories.
Almost all of its calories, 91%, come from protein. It gives 15.2 g of protein, 30% of the 50 g Daily Value, which the FDA's rule of thumb counts as high.
It takes 120 g of crab to reach 100 calories, which is about 1.4 × 3 oz.
Calories by portion
| Portion | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 3 oz | 85 g | 71 | 15.2 g | 0 g | 0.6 g |
| 1 cup, flaked and pieces | 118 g | 98 | 21.1 g | 0 g | 0.9 g |
| 1 cup (not packed) | 135 g | 112 | 24.1 g | 0 g | 1 g |
| 1 oz | 28.3 g | 23 | 5.1 g | 0 g | 0.2 g |
| 100 g | 100 g | 83 | 17.9 g | 0 g | 0.7 g |
Portion weights are USDA's own. Your crab may weigh more or less; for an exact number, weigh it and enter the grams in the food calorie lookup.
Where the calories come from
- Protein: 91% of calories (17.9 g per 100 g)
- Carbohydrate: 0% (0 g per 100 g, of which 0 g fiber)
- Fat: 9% (0.7 g per 100 g)
Shares use the general factors of 4 calories per gram of protein and carbohydrate and 9 per gram of fat, so they can differ a little from USDA's calorie figure. Daily Values are the FDA's adult Daily Values.
Compared with similar foods
Weight for weight, crab has the fewest calories of these four (83 per 100 g) and shrimp the most (99).
| Per 100 g | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Crab | 83 | 17.9 g | 0 g | 0.7 g |
| Canned tuna | 86 | 19.4 g | 0 g | 1 g |
| Lobster | 89 | 19 g | 0 g | 0.9 g |
| Shrimp | 99 | 24 g | 0.2 g | 0.3 g |
Work out your own portion
The food calorie lookup has 3,070 foods. Pick a portion or type a weight in grams or ounces, then add foods to a plate to see the total for a meal. To see how a meal fits your day, the calorie calculator works out your daily calories.
Questions people ask
How many calories is in crab?
Crab has 71 calories. USDA weighs 3 oz at 85 g, and crab has 83 calories per 100 g.
How much protein does crab have?
3 oz (85 g) has 15.2 g of protein, 30% of the 50 g Daily Value. Per 100 g it is 17.9 g.
How many carbs does crab have?
3 oz has 0 g of carbohydrate, including 0 g of fiber, and 0.6 g of fat.
Source: USDA FoodData Central, SR Legacy (2018). USDA entry: Crustaceans, crab, blue, cooked, moist heat (FDC ID 174205). Values are averages; a packaged food's label may differ.