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Tuna Fish Calories and Nutrition Facts

Tuna Fish has 90 calories per 100 g, with 19 g protein, 0.1 g carbs and 0.9 g fat. Official USDA analytical record: Fish, tuna, light, canned in water, drained solids (FDC ID: 334194).

⚡ Quick Nutrition Answer

One standard serving of tuna fish (1 can, total can contents (142 g)) contains 128 calories, 27g protein, 0.1g total carbs (0.1g net carbs), and 1.3g fat. Per 100 grams, it supplies 90 calories.

Energy density

0.9 kcal/g

low

Protein / 100 kcal

21.1 g

satiety per calorie

Net carbs / 100 g

0.1 g

carbs minus fibre

100 kcal portion

111 g

≈ 3.9 oz

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

= 142 g total

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Calories
128
in 142 g · 90 kcal per 100 g
Carbs0.1 g · 0%
Protein27 g · 90%
Fat1.3 g · 10%
Sugars
0g
Fibre
0g
Saturated fat
0.3g
Sodium
311mg

Tuna Fish Portion & Serving Size Comparison

Compare calories, carbs, net carbs, and macros across common household measurements.

Portion SizeWeightCaloriesTotal CarbsNet CarbsProteinFat
100 g100 g90 kcal0.1 g0.1 g19 g0.9 g
1 can, drained solids (107 g)107 g96 kcal0.1 g0.1 g20.3 g1 g
1 can, total can contents (142 g)142 g128 kcal0.1 g0.1 g27 g1.3 g

Fish, tuna, light, canned in water, drained solids nutrition facts

The table below shows the complete nutritional profile for fish, tuna, light, canned in water, drained solids per 100 g (the laboratory analytical standard) and per 1 can, total can contents (142 g), alongside the share of the FDA Daily Value each nutrient covers. Most of its calories come from protein, and it is high in protein (19 g per 100 g).

NutrientPer 100 gPer 1 can, total can contents (142 g)% DV*
Calories90 kcal128 kcal
Protein19 g27 g38%
Carbohydrate0.1 g0.1 g0%
Fat0.9 g1.3 g1%
Sugars0 g0 g
Fibre0 g0 g0%
Saturated fat0.2 g0.3 g1%
Sodium219 mg311 mg10%

*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.

Tuna Fish 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 0.9 kcal per gram (low energy density), low energy density — generous portions stay modest in calories.

AmountCaloriesProteinCarbsFat
1 oz (28 g)26 kcal5.4 g0 g0.3 g
100 g (3.5 oz)90 kcal19 g0.1 g0.9 g
4 oz (113 g)102 kcal21.5 g0.1 g1 g
8 oz / ½ lb (227 g)204 kcal43.1 g0.2 g2 g
1 lb (454 g)408 kcal86.2 g0.5 g4.1 g
🏛️ Official USDA FoodData Central CitationFDC ID: 334194

Data sourced from USDA FoodData Central Foundation Foods dataset (public domain, CC0). Laboratory food profile and analytical measurements verified under USDA FDC ID 334194.

View raw USDA laboratory entry →

How tuna fish compares to other fish & seafood

Against the 23 fish & seafood in this database, tuna fish ranks 14th lowest in calories and 10th highest in protein. The category averages 100 kcal per 100 g, so this one is 10% 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
🍽️ Halibut, frozen, wild caught81 kcal19.1 g0.81
🍽️ Mahi mahi, frozen, wild caught84 kcal19.8 g0.84
🐟 Fish, tuna, light, canned in water, drained solids (this page)90 kcal19 g0.9
🍽️ Snapper, frozen, wild caught90 kcal20.7 g0.9
🐟 Fish, tilapia, farm raised, raw95 kcal19 g0.95

Portion planning with tuna fish

  • 100 calories comes to about 111 g (3.9 oz).
  • 20 g of protein takes about 105 g, bringing 95 kcal with it — that is 21.1 g of protein per 100 calories.
  • Macro split by calories: 0% carbs, 90% protein, 10% 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 — 19 g per 100 g (≥ 20% DV)
  • Low fat — 0.9 g per 100 g (≤ 3 g)
  • Low saturated fat — 0.2 g per 100 g (≤ 1 g)
  • Sugar free — 0 g total sugars per 100 g (< 0.5 g)
  • Keto-friendly — 0.1 g net carbs per 100 g (≤ 5 g)

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Tuna Fish FAQ & Nutrition Questions

How many calories and carbs are in 1 can, total can contents (142 g) of tuna fish?

One serving of 1 can, total can contents (142 g) provides 128 calories, 0.1 g total carbs, 27 g protein, and 1.3 g fat.

How many calories and macros are in 1 can, drained solids (107 g) of tuna fish?

1 can, drained solids (107 g) of tuna fish provides 96 calories, 20.3 g protein, 0.1 g total carbs, and 1 g fat.

How many calories are in 100 g of tuna fish?

Tuna Fish contains 90 calories per 100 g, with 19 g protein, 0.1 g carbohydrate, and 0.9 g fat. Use the interactive calculator above to scale to any custom amount.

What is the USDA FoodData Central (FDC) ID for tuna fish?

The official USDA FoodData Central ID for "Fish, tuna, light, canned in water, drained solids" is FDC ID: 334194. You can view the verified laboratory analytical record on the USDA FoodData Central Database.

What is the macronutrient breakdown of tuna fish?

By calories, tuna fish is approximately 0% carbohydrates, 90% protein, and 10% fat.

How many calories are in an ounce of tuna fish?

One ounce (28 g) of tuna fish has 26 calories, with 5.4 g protein, 0 g carbs and 0.3 g fat. Four ounces (113 g) comes to 102 calories, and a full pound (454 g) to 408 calories.

How much tuna fish is 100 calories?

About 111 g of tuna fish supplies 100 calories, because it carries 0.9 kcal per gram (low energy density). Low energy density — generous portions stay modest in calories.

How much tuna fish do I need for 20 g of protein?

Roughly 105 g of tuna fish, which also brings 95 calories with it. That works out to 21.1 g of protein per 100 calories.

Is tuna fish high or low in calories for a fish & seafood?

Tuna Fish sits 10% below the fish & seafood average of 100 kcal per 100 g, ranking 14th 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.