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How Many Calories in Tinned Tuna?

Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by our editorial team. Last reviewed: 5 September 2026.

Fact-checked against original USDA source data by our editorial team.

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86
calories per 100g
142 calories per 1 can, drained (165g)
MORiSH high-protein snacks — try alongside
19.4gProtein
0.0gCarbs
1.0gFat
0.0gFibre

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⚖ Kitchen Scales

Quick reference — common serving sizes

AmountCaloriesProtein
1 oz (28g)24 kcal5.5g
100g86 kcal19.4g
1 can, drained142 kcal32.0g
grams
86kcal
19.4gprotein
0.0gcarbs
1.0gfat
0.0gfibre

A tinned tuna contains 86 calories per 100g. A typical 1 can, drained (165g) provides about 142 calories. Tinned Tuna is moderate in calories and is a good source of protein. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Tinned Tuna Nutrition Facts

NutrientPer 100gPer serving (165g)
Calories86 kcal142 kcal
Protein19.4g32.0g
Carbohydrates0.0g0.0g
of which Sugars0.0g0.0g
Fat1.0g1.6g
of which Saturates0.2g0.3g
Fibre0.0g0.0g
Sodium247.0mg408mg
Potassium179.0mg295mg
Calcium17.0mg28mg
Iron1.6mg2.6mg
Vitamin C0.0mg0.0mg
Vitamin A17.0µg28µg
Selenium70.6µg116µg
Riboflavin (B2)0.1mg0.2mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

High-protein options alongside tinned tuna

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Have a cat or dog? Check whether tinned tuna is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. If calorie tracking is part of a broader health check, hormone testing can rule out metabolic factors affecting your results. Tracking supplements too? Check drug and supplement interactions before combining anything new.

Good to know

Cooking method changes the final calorie and fat count more than the cut itself — grilling, baking or steaming typically adds nothing, while frying can add a meaningful amount of fat per serving.

Does tinned tuna fit your diet?

High-protein diets

At 19.4g of protein per 100g, tinned tuna clears the 15g/100g threshold generally used to call a food high-protein — a useful contributor if you're tracking protein intake for muscle maintenance, satiety, or a higher-protein eating pattern.

Low-carb / keto

Tinned Tuna contains 0.0g of carbohydrate per 100g, low enough to fit comfortably within most low-carb or ketogenic daily carb allowances — check the fat and protein split above against your specific macro targets.

Frequently Asked Questions

How many calories in tinned tuna per 100g?

Tinned Tuna (known as canned tuna in the US) contains 86 calories per 100g, based on USDA reference data.

Is tinned tuna high in calories?

A 1 can, drained of tinned tuna (165g) has around 142 calories — roughly 7% of a 2,000-calorie daily intake.

Is tinned tuna good for weight loss?

At 86 calories per 100g, tinned tuna is relatively low in calories and can fit well into a weight-loss diet. A 1 can, drained provides about 142 calories.

How much protein is in tinned tuna?

Tinned Tuna contains 19.4g of protein per 100g.

Is tinned tuna a good source of fibre?

Tinned Tuna is relatively low in fibre at 0.0g per 100g, so pairing it with fibre-rich sides (vegetables, whole grains, legumes) can help balance a meal.

How does tinned tuna compare to fish, flatfish (flounder and sole species), cooked, dry heat?

Tinned Tuna has 86 calories per 100g, close to fish, flatfish (flounder and sole species), cooked, dry heat at 86 — 0 calories fewer per 100g. See the full macro breakdown above.

Is tinned tuna keto-friendly?

Tinned Tuna contains 0.0g of carbohydrate per 100g, which fits comfortably within most ketogenic daily carb allowances — check it against your specific daily carb target.

How many servings of tinned tuna for 20g of protein?

With 19.4g of protein per 100g, you'd need roughly 103g of tinned tuna to reach 20g of protein

Foods with a similar calorie count

Other meat & fish closest to tinned tuna by calories per 100g:

FoodCaloriesProteinCarbsFat
Tinned Tuna (this page)86 kcal19.4g0.0g1.0g
Fish, Flatfish (flounder and Sole Species), Cooked, Dry Heat86 kcal15.2g0.0g2.4g
Crustaceans, Crab, Dungeness, Raw86 kcal17.4g0.7g1.0g
Mollusks, Clam, Mixed Species, Raw86 kcal14.7g3.6g1.0g
Mollusks, Mussel, Blue, Raw86 kcal11.9g3.7g2.2g
Pork, Fresh, Variety Meats and By-products, Lungs, Raw85 kcal14.1g0.0g2.7g
Beef, Variety Meats and By-products, Tripe, Raw85 kcal12.1g0.0g3.7g

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Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.