Interesting fact: A tuna can's labeled weight may refer to drained fish, net contents, or the whole can depending on context.
The answer: Typically, a tuna can weighs about 140 to 170 grams (5 to 6 ounces) unopened. The exact weight depends on size, variety, preparation, brand, and how much edible or non-edible material is included.
Meat and fish weights depend on trimming, bone, fat, water loss, and whether the portion is raw or cooked. A realistic range helps with grocery buying, recipe scaling, protein planning, and avoiding over- or under-ordering.
