BeslyTuna: Calories, Protein, Carbs & Fat
How many calories are in tuna? 90 per 100 g, and 76 for 1 serving (85 g). That serving carries 16.1 g protein, 0.1 g carbs and 0.8 g fat.
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Tuna serving sizes: calories and macros
| Serving | Grams | Calories | Protein g | Carbs g | Fat g |
|---|---|---|---|---|---|
| 100 g | 100 | 90 | 19 | 0.1 | 0.9 |
| 1 oz | 28.4 | 26 | 5.4 | 0 | 0.3 |
| 1 serving | 85 | 76 | 16.1 | 0.1 | 0.8 |
Where the calories in tuna come from
Counting protein and carbs at 4 calories per gram and fat at 9, tuna gets 90% of its calories from protein, 0% from carbs and 10% from fat. This split is calculated from the macros listed per 100 g (19 g protein, 0.1 g carbs, 0.9 g fat).
Sodium, fiber, sugar and saturated fat in tuna
A 1 serving (85 g) of tuna also contains 209.9 mg sodium, 0 g fiber, 0 g sugar and 0.2 g saturated fat.
| Nutrient | Per 100 g | Per 1 serving (85 g) |
|---|---|---|
| Sodium | 247 mg | 209.9 mg |
| Fiber | 0 g | 0 g |
| Sugar | 0 g | 0 g |
| Saturated fat | 0.2 g | 0.2 g |
| Cholesterol | 36 mg | 30.6 mg |
| Potassium | 179 mg | 152.2 mg |
| Calcium | 17 mg | 14.4 mg |
| Iron | 1.6 mg | 1.4 mg |
| Vitamin C | 0 mg | 0 mg |
How tuna compares with similar foods
Besly has few foods in the same group, so this compares tuna with the closest foods by calories per 100 g. At 90 kcal it is number 2 of 5, sorted from lowest to highest.
| Food (per 100 g) | Calories | Protein g | Carbs g | Fat g |
|---|---|---|---|---|
| Banana | 89 | 1.1 | 22.8 | 0.3 |
| Tuna (this page) | 90 | 19 | 0.1 | 0.9 |
| Shrimp | 99 | 24 | 0.2 | 0.3 |
| Tilapia | 128 | 26.2 | 0 | 2.6 |
| Salmon | 179 | 19.9 | 0 | 10.4 |
Forms and preparations of tuna
Across the 5 forms listed for tuna, calories range from 85 kcal per 100 g (Fish, tuna, canned) to 194 kcal per 100 g (Tuna salad, made with mayonnaise).
| Form or preparation (per 100 g) | Calories | Protein g | Carbs g | Fat g | Default serving |
|---|---|---|---|---|---|
| Canned Tuna (main entry) | 90 | 19 | 0.1 | 0.9 | 1 serving (85 g): 76 kcal |
| Fish, tuna, canned | 85 | 19 | 0.1 | 0.9 | 1 cup (135 g): 115 kcal |
| Fish, tuna, cooked | 176 | 27.3 | 0 | 4.6 | 1 small/regular fillet (90 g): 158 kcal |
| Tuna steak (ahi), cooked | 130 | 29.1 | 0 | 0.6 | 1 steak (170 g): 221 kcal |
| Tuna salad, made with mayonnaise | 194 | 10.1 | 2.9 | 15.8 | 1 cup (238 g): 462 kcal |
Frequently asked questions
How many calories are in 1 serving of tuna?
1 serving (85 g) of tuna has 76 calories, with 16.1 g protein, 0.1 g carbs and 0.8 g fat.
How many calories are in 100 g of tuna?
100 g of tuna has 90 calories, 19 g protein, 0.1 g carbs and 0.9 g fat. One ounce (28.4 g) is 26 calories.
Is tuna low in carbs?
Carbs supply 0% of the calories in tuna (protein 90%, fat 10%). Per 100 g there are 0.1 g of carbs, and 1 serving (85 g) has 0.1 g, including 0 g of fiber.
Recipes with tuna
- Open-Faced Citrus Tuna Melt
- Baked Tuna and Egg Brik
- Mediterranean Tuna and Chickpea Salad
- Neapolitan Tuna Fettuccine
- Grilled Tuna with Chickpea and Spinach Salad
- Avocado and Mango Tuna Salad
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Source: USDA FoodData Central, via the Besly food database (source tag “usda”, record us.generic.canned_tuna). Data snapshot: October 16, 2026. Values are averages for the food as described and vary by brand, ripeness and preparation. Serving sizes come from the same record.