Fish

Q: How many calories in 100g of fish?

About 116 calories, with roughly 20.5g of protein. 100g weighs about 100g. Use the slider above for any other portion.

One food. Every number that matters.

116

cal per 100 g

Portion explorer

How much are you eating?

Drag the slider or type grams. Everything below updates live.

= 3.5 oz

Calories

116

Protein

20.5g

Carbs

1.8g

Fat

2.9g

Protein 71% Carbs 6% Fat 23%

Get weekly calorie thinking from Caloro

One short email a week — food comparisons, restaurant hacks, and honest calorie thinking. No fluff, no fads.

Unsubscribe anytime. No spam.

You’re on the list. Your first email arrives once we have something worth sending — probably this week.

Fish is basically 71% 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:

—

For calories, eat:

—

Burn it off

What per 100 g costs.

Minutes for a 155 lb (70 kg) adult to burn 116 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 fat0.726 g4%

Cholesterol72 mg24%

Sodium79 mg3%

Potassium449 mg10%

Calcium20 mg2%

Iron0.27 mg2%

Magnesium26 mg6%

Zinc0.61 mg6%

Vitamin C0 mg0%

Vitamin E1.9 mg13%

Vitamin A47 mcg5%

Vitamin B60.39 mg23%

Vitamin B121.78 mcg74%

Folate15 mcg4%

Niacin5.762 mg36%

Caffeine0 mg—

How it stacks

Compared to its neighbors.

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

Caribou

Almost identical calories · -6g protein.

Cal122 Protein15 g Fat3.9 g

Walrus

Almost identical calories.

Cal125 Protein21 g Fat3 g

Fish

19 fewer calories per 100g · -9g protein.

Cal97 Protein11.7 g Fat5.3 g

Common questions

The stuff people actually ask.

How many calories in 100g of fish?

About 116 calories, with roughly 20.5g 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.

Stop typing grams. Snap the plate.

Caloro reads any food from a photo and logs it in a second. Free to try, no card.

Open Caloro →