Calories in Crawfish: Per 100 g, Per Serving & Nutrition Facts
77 kcal (322 kJ) per 100 g · P/F/C 16/1/0 g
Serving (100 g) — 77 kcal (322 kJ) · Nutri-Score A
Figures are for: Crayfish, raw
Per 100 g: sugar: low saturated fat: low salt: low fiber: low
Is crawfish healthy?
Yes. On its nutrient profile, crawfish is a healthy choice: grade A on the open 2023 Nutri-Score algorithm, the top grade.
For
- All green on the traffic light: 0 g sugar, 0.2 g salt and 0.2 g saturated fat per 100 g.
- Protein: 16 g per serving — 29% of the 56 g daily reference for a 70 kg (154 lb) adult.
A typical serving is 100 g: 77 kcal, 16 g protein, 1 g fat and 0 g carbs. Other weights in the table.
How we judge this, and the sources
The answer comes from the food's composition, not from opinion: its Nutri-Score grade on the open 2023 algorithm, a traffic light for sugar, salt, saturated fat and fiber per 100 g, and the share of daily reference amounts in a typical serving (for salt, sugar, fiber and vegetables, those of the WHO). It rates the food's nutrient profile; it is not medical advice. Formulas, thresholds and every source are on the methodology page; last checked against the sources on September 30, 2026. The short food description was written by our language model (AI) — how we check the text.
Crawfish (crayfish) meat is almost pure protein — about 16 g per 100 g with around 1 g of fat. Most of the edible meat is in the tail.
How many calories in crawfish: per 100 g and per serving
| Nutrient | Per 100 g | Serving: 100 g |
|---|---|---|
| Calories | 77 kcal | 77 kcal |
| Energy (kilojoules) | 322 kJ | 322 kJ |
| Protein | 16 g | 16 g |
| Fat | 1 g | 1 g |
| incl. saturated | 0.2 g | 0.2 g |
| Total carbohydrates | 0 g | 0 g |
| incl. sugars | 0 g | 0 g |
| incl. fiber | 0 g | 0 g |
| Salt | 0.2 g | 0.2 g |
*Where the numbers come from
Values per 100 g come from a single record of an open food composition table: USDA FoodData Central, FDC ID 174206, “Crustaceans, crayfish, mixed species, wild, raw” — the measured composition of this exact food, raw, as you weigh it before cooking, not an average across tables. Rounded. Carbohydrates are total carbohydrate, fiber included, as on a US Nutrition Facts label; salt is sodium × 2.5. Table licenses are on the data sources page.
protein 88%fat 12%carbs 0%
Vitamins and minerals in crawfish
Per 100 g, the standouts are vitamin B12 — 2 mcg, 83% of the Daily Value; selenium — 32 mcg, 57% of the Daily Value; copper — 0.42 mg, 47% of the Daily Value (#3 of 25 in our fish & seafood section).
| Nutrient | Per 100 g | Serving: 100 g | % DV |
|---|---|---|---|
| Vitamin E | 2.9 mg | 2.9 mg | 19% |
| Thiamin (B1) | 0.07 mg | 0.07 mg | 6% |
| Riboflavin (B2) | 0.03 mg | 0.03 mg | 2% |
| Niacin (B3) | 2.2 mg | 2.2 mg | 14% |
| Vitamin B6 | 0.11 mg | 0.11 mg | 6% |
| Folate (B9) | 37 mcg | 37 mcg | 9% |
| Vitamin B12 | 2 mcg | 2 mcg | 83% |
| Potassium | 302 mg | 302 mg | 6% |
| Calcium | 27 mg | 27 mg | 2% |
| Magnesium | 27 mg | 27 mg | 6% |
| Phosphorus | 256 mg | 256 mg | 20% |
| Iron | 0.84 mg | 0.84 mg | 5% |
| Zinc | 1.3 mg | 1.3 mg | 12% |
| Copper | 0.42 mg | 0.42 mg | 47% |
| Manganese | 0.23 mg | 0.23 mg | 10% |
| Selenium | 32 mcg | 32 mcg | 57% |
| Cholesterol | 114 mg | 114 mg | 38% |
*Where the vitamin numbers come from
Vitamins and minerals come from the USDA FoodData Central record “Crustaceans, crayfish, mixed species, wild, raw” (FDC ID 174206, SR Legacy; public domain), checked October 14, 2026; the record was matched to this food by calories, protein and fat. % DV is per serving, against the FDA Daily Values used on Nutrition Facts labels (2,000-calorie diet). The table lists nutrients that reach at least 2% DV per 100 g; the rest are absent or trace. Varieties, seasons and brands differ, and cooking in water leaches some vitamin C and B vitamins.
Crawfish calories by weight, 50–300 g
150 g of crawfish has 116 calories and 200 g has 154. The table gives protein, fat and carbs for each weight; for any other amount, type your own into the calculator below.
| Weight | Kcal | P / F / C, g |
|---|---|---|
| 50 g | 39 | 8 / 0.5 / 0 |
| 100 g — typical serving | 77 | 16 / 1 / 0 |
| 150 g | 116 | 24 / 1.5 / 0 |
| 200 g | 154 | 32 / 2 / 0 |
| 250 g | 193 | 40 / 2.5 / 0 |
| 300 g | 231 | 48 / 3 / 0 |
Try it with your numbers
Portion → calories and macros
Pick a food and a portion.
Crawfish: calories by type and cooking method
“Calories per 100 g” depends on which kind you mean — dry or cooked, oil in the pan, what it's served with. Every row comes from the same database the diary uses.
| Per 100 g | Kcal | P / F / C, g |
|---|---|---|
| Crayfish, raw | 77 | 16 / 1 / 0 |
| Crayfish, boiled | 80 | 17 / 1.2 / 0 |
How much movement is one serving?
A 100 g serving is 77 kcal — roughly 25 min of easy walking or 10 min of cycling for a 70 kg (154 lb) person. In the diary, minutes are worked out for your weight and the activities you actually do.
Crawfish: swaps and alternatives
No need to swap: crawfish already gets grade A, the top of the scale, and nothing is in the red on the per-100 g traffic light: sugar 0 g (red is over 22.5 g), saturated fat 0.2 g (over 5 g) and salt 0.2 g (over 1.5 g). We only suggest a swap when it fixes a real problem. How we pick swaps.
What to pair crawfish with
A serving of crawfish has no fiber (the WHO suggests at least 25 g a day); that's easy to make up on the same plate:
- Broccoli, 150 g — +4.9 g fiber, 53 kcal.
Equally good alternatives
Same food group and the same place on the plate, with a Nutri-Score grade at least as good. Figures are for 100 g, a typical serving of crawfish.
| Food | Grade | Kcal | Protein, g | Fiber, g |
|---|---|---|---|---|
| Crawfish | A | 77 | 16 | 0 |
| Shrimp | A | 95 | 20 | 0 |
| Imitation Crab (Surimi) | A | 99 | 15 | 0 |
| Cod | A | 105 | 23 | 0 |
Crawfish vs similar foods: calories compared
| Per 100 g | Kcal | P / F / C, g |
|---|---|---|
| Scallops | 69 | 12 / 0.5 / 3.2 |
| Crawfish | 77 | 16 / 1 / 0 |
| Lobster | 77 | 17 / 0.8 / 0 |
| Mussels | 86 | 12 / 2.2 / 3.7 |
| Canned Tuna | 116 | 25 / 1 / 0 |
| Smoked Salmon | 117 | 18 / 4.3 / 0 |
| Barramundi | 124 | 24 / 2.6 / 0 |
FAQ
How many calories are in 100 g of crawfish?
100 g of crawfish has 77 calories, with 16 g protein, 1 g fat and 0 g carbohydrates.
How many calories are in a serving of crawfish?
A 100 g serving has 77 calories: 16 g protein, 1 g fat and 0 g carbs.
What are the macros of crawfish?
Per 100 g: 16 g protein, 0 g carbs and 1 g fat. By calories that's about 88% protein, 0% carbs and 12% fat.
How long do you have to walk to burn a serving of crawfish?
About 25 min of easy walking or 10 min of cycling for a 70 kg (154 lb) person — that's the 77 calories in a 100 g serving.
What vitamins and minerals are in crawfish?
Per 100 g, crawfish is richest in vitamin B12 (2 mcg, 83% DV), selenium (32 mcg, 57% DV), copper (0.42 mg, 47% DV) — from USDA FoodData Central record 174206.
How much fiber is in crawfish?
None: dietary fiber comes from plant foods and mushrooms — vegetables, fruit, grains, beans and nuts.