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Canned tuna calories and nutrition facts
100 grams of canned tuna contains 86 calories, with 19.4 g of protein, 0 g of carbohydrate and 1 g of fat. Most of its calories come from protein.
Canned tuna in water is the pantry's protein workhorse: a drained can delivers around 25 g of protein for barely 100 calories, needing no cooking at all. The oil-packed version roughly doubles the energy unless thoroughly drained. Mayonnaise is where most tuna dishes actually earn their calories.
Where the calories come from
Protein 90% Carbs 0% Fat 10%
How canned tuna compares
Per 100 g, against the closest fish & seafood in this database.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Canned tuna | 86 kcal | 19.4 g | 0 g | 1 g |
| Alaska pollock, cooked | 86.6 kcal | 19.4 g | 0 g | 1 g |
| Northern pike, raw | 88 kcal | 19.3 g | 0 g | 0.7 g |
| Cusk, raw | 87 kcal | 19 g | 0 g | 0.7 g |
| Haddock | 87 kcal | 19 g | 0 g | 0.7 g |
Same food, different preparation
| Preparation | Calories | Protein | Fat |
|---|---|---|---|
| Tuna (typical) | 184 kcal | 29.9 g | 6.3 g |
| Canned tuna (canned) | 86 kcal | 19.4 g | 1 g |
Per 100 g. Water loss in cooking concentrates calories; added fat in frying adds its own.
Nutrition facts for canned tuna
| Nutrient | Per 100 g | Per 3 oz drained |
|---|---|---|
| Calories | 86 kcal | 73 kcal |
| Protein | 19.4 g | 16 g |
| Carbohydrate | 0 g | 0 g |
| Fat | 1 g | 1 g |
| Fiber | 0 g | 0 g |
| Sugar | 0 g | 0 g |
| Saturated fat | 0.2 g | 0 g |
| Salt | 0.6 g | 1 g |
Print an EU-style nutrition label for canned tuna — per 100 g and per portion.
Vitamins and minerals in canned tuna
Per 100 g, highest share of the Daily Value first. %DV = the adult Daily Value (FDA reference). USDA reference data — not medical advice.
| Nutrient | Per 100 g | %DV |
|---|---|---|
| Selenium | 70.6 µg | 128% |
| Vitamin B12 | 2.5 µg | 106% |
| Niacin (B3) | 10.1 mg | 63% |
| Vitamin B6 | 0.32 mg | 19% |
| Phosphorus | 139 mg | 11% |
| Iron | 1.6 mg | 9% |
| Zinc | 0.69 mg | 6% |
| Copper | 0.05 mg | 6% |
See the richest foods per nutrient in the nutrient toplists.
Calories in common canned tuna servings
How many calories in a portion of canned tuna — reference serving estimates with the gram weight shown.
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 oz (28 g) | 24.1 kcal | 5.4 g | 0 g | 0.3 g |
| 3 oz (85 g) | 73 kcal | 16 g | 0 g | 1 g |
| 100 g (100 g) | 86 kcal | 19 g | 0 g | 1 g |
| 1 cup, solid or chunks (154 g) | 132 kcal | 30 g | 0 g | 2 g |
| 1 can (165 g) | 142 kcal | 32 g | 0 g | 2 g |
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Frequently asked questions
How many calories are in canned tuna?
Canned tuna has 86 calories per 100 grams. A typical serving of 3 oz drained (85 g) has about 73 calories.
How much protein is in canned tuna?
Canned tuna contains 19.4 g of protein per 100 g, or about 16 g per 3 oz drained.
Is canned tuna low in carbs?
Yes by the numbers: Canned tuna has 0 g of carbohydrate per 100 g. People following low-carb or keto approaches often include foods in this range — portion size and your own plan still decide.
Is canned tuna a good source of protein?
Canned tuna provides 19.4 g of protein per 100 g — about 90% of its calories come from protein.
Are these canned tuna calories exact?
No. These are per-100-gram reference values from the USDA FoodData Central SR Legacy source family. Portion size, ripeness, cut and cooking method all change the real number, so treat them as an estimate and log your own portion.
Related foods
Source: USDA FoodData Central SR Legacy #173709 (2018-04 release). US Government work — public domain in the United States. Reference values per 100 g edible portion.
