Calories in Tuna, canned in water
Per 1 can drained, 142 g
Tuna, canned in water has 167 calories per 1 can drained, 142 g. That is about 8% of a 2,000-calorie day. The same serving provides 39.0 g of protein, 0.0 g of carbohydrate, 1.2 g of fat and 0.0 g of fibre. Per 100 g, that works out at 118 calories and 27.5 g of protein. Against the thresholds EU food labelling uses, it qualifies as high in protein, low in fat, low energy density and strong protein per calorie. Canned in water rather than oil saves roughly 90 calories a tin.
Calories and macros
| Per 1 can drained, 142 g | Serving | Per 100 g | % of daily intake |
|---|---|---|---|
| Calories | 167 kcal | 118 kcal | 8% |
| Protein | 39.0 g | 27.5 g | 78% |
| Carbohydrate | 0.0 g | 0.0 g | 0% |
| Fat | 1.2 g | 0.8 g | 2% |
| Fibre | 0.0 g | 0.0 g | 0% |
Daily intake percentages use the EU reference intakes an average adult label is based on: 2,000 kcal, 50 g protein, 260 g carbohydrate, 70 g fat, 30 g fibre.
What this is good for
These are the nutrition claims this food would qualify for under EU labelling rules — thresholds, not opinions.
Worth knowing
Figures are for a typical example and will vary by brand, ripeness and how it was cooked. For a target of your own, run the calorie calculator or take the short quiz. To log this without doing the arithmetic, Joules is free.
Figures last reviewed 29 August 2026.
Common questions about tuna, canned in water
How many calories are in tuna, canned in water?
Tuna, canned in water has 167 calories per 1 can drained, 142 g, which is about 8% of a 2,000-calorie day.
How many calories are in 100 g of tuna, canned in water?
100 g of tuna, canned in water contains 118 calories.
How much protein is in tuna, canned in water?
One serving of 1 can drained, 142 g provides 39.0 g of protein — 27.5 g per 100 g, or 78% of the 50 g daily reference intake.
How many carbs are in tuna, canned in water?
One serving of 1 can drained, 142 g contains 0.0 g of carbohydrate, of which 0.0 g is fibre.
What is tuna, canned in water a good source of?
Measured against EU food labelling thresholds, tuna, canned in water qualifies as high in protein, low in fat, low energy density and strong protein per calorie. At least 20% of its calories come from protein. Under 3 g of fat per 100 g. Under 120 calories per 100 g, so a filling portion stays affordable. About 23 g of protein for every 100 calories.