Fish

One food. Every number that matters.

150
cal per 100 g

Portion explorer

How much are you eating?

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

g
= 3.5 oz

Calories

150

Protein

23.2g

Carbs

0g

Fat

5.9g
Protein 64% Carbs 0% Fat 36%

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 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:

—

For calories, eat:

—

Burn it off

What per 100 g costs.

Minutes for a 155 lb (70 kg) adult to burn 150 cal. Adjust down for lighter, up for heavier.

Walking

43

min · 3.5 mph

Cycling

21

min · easy pace

Jogging

17

min · 5 mph

Swimming

20

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.

Calcium60 mg5%
Iron1.8 mg10%
Niacin8.5 mg53%

Common questions

The stuff people actually ask.

How many calories in 100g of fish?
About 150 calories, with roughly 23.2g 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 →

Snap food. Get calories. Get Caloro.

Open Caloro →