Fish sandwiches compared across 6 chains

6 of the largest US chains list 6 menu items in this group (fish sandwiches). Among single orders, the lightest is the McDonald’s Filet-O-Fish (serving size not stated) at 380 calories and the heaviest is the Culver's North Atlantic Cod Sandwich (serving size not stated) at 600 calories.

Each chain sets its own portions, so a “medium” at one chain can be much larger than at another, and some chains give values for one piece or one slice rather than a whole order. The size column shows the serving each row’s values are for, as the chain publishes it (pieces, weight or volume); compare servings, not size names. Values are for the standard recipe.