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Legs only Snow crab Calories and Nutrition Facts

Legs only Snow crab has 69 calories per 100 g, with 15.5 g protein, 1.1 g carbs and 0.3 g fat. Official USDA analytical record: Snow crab, legs only, frozen (FDC ID: 2747670).

⚡ Quick Nutrition Answer

A 100g serving of legs only snow crab contains 69 calories, 15.5g protein, 1.1g total carbs (1.1g net carbs), and 0.3g fat.

Energy density

0.69 kcal/g

low

Protein / 100 kcal

22.5 g

satiety per calorie

Net carbs / 100 g

1.1 g

carbs minus fibre

100 kcal portion

145 g

≈ 5.1 oz

✓ High protein✓ Low fat✓ Low saturated fat✓ Sugar free✓ Keto-friendly
Serving size
How many?

= 100 g total

Log snow crab free →
Calories
69
in 100 g · 69 kcal per 100 g
Carbs1.1 g · 6%
Protein15.5 g · 90%
Fat0.3 g · 4%
Sugars
0g
Fibre
0g
Saturated fat
0g
Sodium
728mg

Snow crab, legs only, frozen nutrition facts

The table below shows the complete nutritional profile for snow crab, legs only, frozen per 100 g (the laboratory analytical standard), alongside the share of the FDA Daily Value each nutrient covers. Most of its calories come from protein, and it is high in protein (15.5 g per 100 g).

NutrientPer 100 g% DV*
Calories69 kcal
Protein15.5 g31%
Carbohydrate1.1 g0%
Fat0.3 g0%
Sugars0 g
Fibre0 g0%
Saturated fat0 g0%
Sodium728 mg32%

*Percent Daily Value per 100 g, against the FDA reference intakes for adults and children 4+ years (50 g protein, 275 g carbohydrate, 28 g fibre, 78 g fat, 20 g saturated fat, 2300 mg sodium). Total sugars has no Daily Value — the 50 g reference applies to added sugars only, and USDA reports total sugars here.

Legs only Snow crab calories by weight: ounces, pounds and grams

USDA publishes this food per 100 g, so here is the same profile converted to the weights a kitchen scale and a US recipe actually use. At 0.69 kcal per gram (low energy density), low energy density — generous portions stay modest in calories.

AmountCaloriesProteinCarbsFat
1 oz (28 g)20 kcal4.4 g0.3 g0.1 g
100 g (3.5 oz)69 kcal15.5 g1.1 g0.3 g
4 oz (113 g)78 kcal17.6 g1.2 g0.3 g
8 oz / ½ lb (227 g)156 kcal35.2 g2.5 g0.7 g
1 lb (454 g)313 kcal70.3 g5 g1.4 g
🏛️ Official USDA FoodData Central CitationFDC ID: 2747670

Data sourced from USDA FoodData Central Foundation Foods dataset (public domain, CC0). Laboratory food profile and analytical measurements verified under USDA FDC ID 2747670.

View raw USDA laboratory entry →

How legs only snow crab compares to other fish & seafood

Against the 23 fish & seafood in this database, legs only snow crab ranks 7th lowest in calories and 17th highest in protein. The category averages 100 kcal per 100 g, so this one is 31% below it. The lightest option in the category is squid (calamari), frozen, tubes only at 44 kcal per 100 g, and the protein leader is anchovies, canned in olive oil, with salt, drained at 26.9 g per 100 g.

Fish & Seafood (by calories)CaloriesProteinkcal/g
🐟 Fish, cod, Atlantic, wild caught, raw66 kcal16.1 g0.66
🍽️ Scallops, sea, frozen, wild caught66 kcal13.5 g0.66
🦀 Snow crab, legs only, frozen (this page)69 kcal15.5 g0.69
🦐 Crustaceans, shrimp, farm raised, raw71 kcal15.6 g0.71
🐟 Fish, haddock, raw74 kcal16.3 g0.74

Portion planning with legs only snow crab

  • 100 calories comes to about 145 g (5.1 oz).
  • 20 g of protein takes about 129 g, bringing 89 kcal with it — that is 22.5 g of protein per 100 calories.
  • Macro split by calories: 6% carbs, 90% protein, 4% fat.

Nutrient screening detail

The badges near the top of this page come from screening the per-100 g values against the FDA nutrient-content thresholds in 21 CFR 101.54–101.62. The regulations define those claims per reference serving rather than per 100 g, so treat these as a like-for-like comparison between foods, not as a statement about a product label:

  • High protein — 15.5 g per 100 g (≥ 20% DV)
  • Low fat — 0.3 g per 100 g (≤ 3 g)
  • Low saturated fat — 0 g per 100 g (≤ 1 g)
  • Sugar free — 0 g total sugars per 100 g (< 0.5 g)
  • Keto-friendly — 1.1 g net carbs per 100 g (≤ 5 g)

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Legs only Snow crab FAQ & Nutrition Questions

How many calories and carbs are in 100 g of legs only snow crab?

One serving of 100 g provides 69 calories, 1.1 g total carbs, 15.5 g protein, and 0.3 g fat.

How many calories are in 100 g of legs only snow crab?

Legs only Snow crab contains 69 calories per 100 g, with 15.5 g protein, 1.1 g carbohydrate, and 0.3 g fat. Use the interactive calculator above to scale to any custom amount.

What is the USDA FoodData Central (FDC) ID for legs only snow crab?

The official USDA FoodData Central ID for "Snow crab, legs only, frozen" is FDC ID: 2747670. You can view the verified laboratory analytical record on the USDA FoodData Central Database.

What is the macronutrient breakdown of legs only snow crab?

By calories, legs only snow crab is approximately 6% carbohydrates, 90% protein, and 4% fat.

How many calories are in an ounce of legs only snow crab?

One ounce (28 g) of legs only snow crab has 20 calories, with 4.4 g protein, 0.3 g carbs and 0.1 g fat. Four ounces (113 g) comes to 78 calories, and a full pound (454 g) to 313 calories.

How much legs only snow crab is 100 calories?

About 145 g of legs only snow crab supplies 100 calories, because it carries 0.69 kcal per gram (low energy density). Low energy density — generous portions stay modest in calories.

How much legs only snow crab do I need for 20 g of protein?

Roughly 129 g of legs only snow crab, which also brings 89 calories with it. That works out to 22.5 g of protein per 100 calories.

Is legs only snow crab high or low in calories for a fish & seafood?

Legs only Snow crab sits 31% below the fish & seafood average of 100 kcal per 100 g, ranking 7th lowest of 23 in this category.

Is this nutrition data free to use?

Yes. The data is sourced directly from USDA FoodData Central (CC0 public domain). Viewing and scaling portions here is 100% free with no sign-up — and you can log this food free in our online food diary.