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McDonald's fish sandwich calories

Mcdonald's fish sandwich, fast food, Filet-O-Fish
378kcal
1 sandwich · 134 g, fast food, Filet-O-Fish
16%protein
15.1 gProtein
35 gCarbs
19.6 gFat
How to burn off 378 kcal
—Walking, brisk
—Jogging
—Cycling, moderate
—Swimming
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Nutrition facts
Fast food, filet-o-fish · per 134 g
Calories378 kcal
Protein15.1 g
Carbohydrate35 g
Fat19.6 g
Saturated fat3.8 g
Cholesterol43 mg
Sodium582 mg
Potassium295 mg
Iron2.1 mg

Source: USDA FoodData Central

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Verified nutrition data

Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →

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Mcdonald's fish sandwich FAQs
How many calories are in a McDonald's fish sandwich?

A Filet-O-Fish (134 g) has about 378 calories, or 282 per 100 g.

Is the McDonald's Filet-O-Fish good for weight loss?

At 378 calories it is lighter than a Big Mac, with 19.6 g fat and 582 mg sodium per sandwich.

Filet-O-Fish vs Big Mac: which has fewer calories?

The Filet-O-Fish has 378 calories (134 g), while a Big Mac (219 g) has 563.

How much protein is in a McDonald's fish sandwich?

One Filet-O-Fish has 15.1 g protein, along with 35.4 g carbs and 4.9 g sugars.