Fish

Q: How many calories in 100g of fish?

About 140 calories, with roughly 22.6g of protein. 100g weighs about 100g. Use the slider above for any other portion.

One food. Every number that matters.

140

cal per 100 g

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= 3.5 oz

Calories

140

Protein

22.6g

Carbs

Fat

5.6g

Protein 64% Carbs 0% Fat 36%

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Fish is basically 64% protein by calorie. Not many foods in the aisle read that clean.

Cottage cheese, skyr, and canned tuna hit the same range. Most things marketed as "high protein" land in the 30–45% band.

Reverse calculator

Work backwards from your target.

To hit grams of protein, eat:

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For calories, eat:

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Burn it off

What per 100 g costs.

Minutes for a 155 lb (70 kg) adult to burn 140 cal. Adjust down for lighter, up for heavier.

Walking

min · 3.5 mph

Cycling

min · easy pace

Jogging

min · 5 mph

Swimming

min · freestyle

Estimates from the Compendium of Physical Activities. Real burn depends on weight, intensity, and fitness.

Full nutrient panel · per 100 g

What else is in there.

From USDA FoodData Central (SR Legacy). %DV against the FDA 2,000-calorie reference.

Fiber0 g0%

Sugar0 g—

Saturated fat0.904 g5%

Cholesterol58 mg19%

Sodium58 mg3%

Potassium380 mg8%

Calcium5 mg0%

Iron0.55 mg3%

Magnesium28 mg7%

Zinc0.41 mg4%

Vitamin C0 mg0%

Vitamin E0.81 mg5%

Vitamin A30 mcg3%

Vitamin B60.225 mg13%

Vitamin B128.52 mcg355%

Folate13 mcg3%

Niacin7.93 mg50%

Caffeine0 mg—

How it stacks

Compared to its neighbors.

per 100 g, as-served. Same portion, honest comparison.

Black Bear

15 more calories per 100g.

Cal155 Protein20.1 g Fat8.3 g

Walrus

15 fewer calories per 100g.

Cal125 Protein21 g Fat3 g

Caribou

18 fewer calories per 100g · -8g protein.

Cal122 Protein15 g Fat3.9 g

Common questions

The stuff people actually ask.

How many calories in 100g of fish?

About 140 calories, with roughly 22.6g of protein. 100g weighs about 100g. Use the slider above for any other portion.

Is fish actually healthy, or is that marketing?

By the numbers on this page: high protein, low fat, near zero sugar. Hard to argue with.

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