Filet-O-Fish calories and nutrition
A Filet-O-Fish has 380 calories, with 16 g of protein, 19 g of fat, and 38 g of carbs.
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Where the calories come from
A Filet-O-Fish is a breaded filet of wild-caught Alaska pollock with tartar sauce and a half slice of American cheese on a steamed bun. The bun brings the most calories. The tartar sauce brings about half of the fat, more than the fish. McDonald's lists every ingredient and allergen on its Filet-O-Fish page.
| Part | Calories | Protein, fat, and carbs |
|---|---|---|
| Bun | 140 kcal | 5 g protein, 2 g fat, 27 g carbs |
| Fish filet | 120 kcal | 10 g protein, 5 g fat, 10 g carbs |
| Tartar sauce | 90 kcal | 1 g protein, 10 g fat, 1 g carbs |
| Half slice of cheese | 20 kcal | 2 g protein, 2 g fat, 1 g carbs |
From McDonald's nutrition calculator, with each part taken out in turn. The parts add up to 370 calories, not 380, because McDonald's rounds each number.
Common questions
How much protein is in a Filet-O-Fish?
A Filet-O-Fish has 16 g of protein, or 4.2 g for every 100 calories. The table below puts it next to other McDonald's items.
How many calories are in a Filet-O-Fish without tartar sauce?
A Filet-O-Fish without tartar sauce has 290 calories and 9 g of fat, by McDonald's nutrition calculator.
Does a Filet-O-Fish have cheese?
Yes. A Filet-O-Fish has a half slice of American cheese, which adds 20 calories.
What fish is in a Filet-O-Fish?
A Filet-O-Fish is made with wild-caught Alaska pollock, McDonald's says.
Filet-O-Fish compared with other McDonald's items
All McDonald's nutrition factsOf these six McDonald's items, the Double Cheeseburger has the most protein per 100 calories (5.7 g) and fries the least (1.6 g).
| Item | CaloriesCal | Protein | Fat | Carbs | Net carbs | Protein per 100 calPer 100 cal |
|---|---|---|---|---|---|---|
| Double Cheeseburger | 440 | 25 g | 24 g | 34 g | 32 g | 5.7 g |
| Chicken McNuggets | 410 | 23 g | 24 g | 26 g | 25 g | 5.6 g |
| McDouble | 390 | 22 g | 20 g | 32 g | 30 g | 5.6 g |
| Filet-O-FishThis page | 380 | 16 g | 19 g | 38 g | 37 g | 4.2 g |
| McChicken | 390 | 14 g | 21 g | 38 g | 37 g | 3.6 g |
| Fries | 320 | 5 g | 15 g | 43 g | 39 g | 1.6 g |
Most protein per 100 calories first. The mark on each bar is 5 g. Numbers are for one serving, the size the card opens on.
Sources
3 sources
- McDonald's. Filet-O-Fish, nutrition information. www.mcdonalds.com/us/en-us/product/filet-o-fish.html. Checked October 2026.
- McDonald's. Nutrition calculator, Filet-O-Fish with each ingredient taken out in turn. www.mcdonalds.com/us/en-us/about-our-food/nutrition-calculator.html. Checked October 2026.
- Evan-Amos. McDonald's Filet-O-Fish sandwich (1), photo. Wikimedia Commons, public domain. commons.wikimedia.org/wiki/File:McDonald%27s_Filet-O-Fish_sandwich_(1).jpg.
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