Fast-food nutrition · USDA analysis
Subway Tuna Sub: Calories & Nutrition
Quick answer
USDA lists a Subway Tuna Sub as “6 inch sub” (237 g). That portion has 524 kcal, 29.2 g of protein, 37.8 g of carbs and 28.5 g of fat. Per 100 g it has 221 kcal.
- Calories
- 524kcal
- per 6 inch sub
- Protein
- 29.2g
- per 6 inch sub
- Carbs
- 37.8g
- per 6 inch sub
- Fat
- 28.5g
- per 6 inch sub
- Protein 22% · 29.2 g
- Carbs 29% · 37.8 g
- Fat 49% · 28.5 g
USDA analysis from the 2018 SR Legacy release; the chain's current recipe may differ — check the chain's own nutrition information. Subway is named only to say which menu item USDA analysed. CalorTracker is not affiliated with, endorsed by or sponsored by Subway.
Subway Tuna Sub calories by portion
USDA records the weight of each portion it lists for this item. The calories and macros below are the per-100 g values scaled to each weight, so the one-item row matches the figures above.
| Amount | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 6 inch sub: 237 g (one item) | 524 kcal | 29.2 g | 37.8 g | 28.5 g |
| 12 inch sub: 474 g | 1,048 kcal | 58.4 g | 75.6 g | 57.1 g |
| 100 g | 221 kcal | 12.3 g | 16 g | 12 g |
Subway Tuna Sub nutrition facts
| Nutrient | Per item (237 g) | Per 100 g | % Daily Value per item |
|---|---|---|---|
| Calories | 524 kcal | 221 kcal | – |
| Protein | 29.2 g | 12.3 g | 58% |
| Total fat | 28.5 g | 12 g | 37% |
| Saturated fat | 5.2 g | 2.19 g | 26% |
| Monounsaturated fat | 6.72 g | 2.84 g | – |
| Polyunsaturated fat | 16.3 g | 6.9 g | – |
| Cholesterol | 66.4 mg | 28 mg | 22% |
| Total carbohydrate | 37.8 g | 16 g | 14% |
| Dietary fiber | 1.66 g | 0.7 g | 6% |
| Total sugars | 4.57 g | 1.93 g | – |
| Sodium | 780 mg | 329 mg | 34% |
| Potassium | 419 mg | 177 mg | 9% |
| Calcium | 322 mg | 136 mg | 25% |
| Iron | 3.72 mg | 1.57 mg | 21% |
| Magnesium | 52.1 mg | 22 mg | 12% |
| Phosphorus | 258 mg | 109 mg | 21% |
| Zinc | 1.59 mg | 0.67 mg | 14% |
| Vitamin A (RAE) | 26.1 µg | 11 µg | 3% |
| Vitamin C | 0 mg | 0 mg | 0% |
| Vitamin D | Not reported | Not reported | – |
| Vitamin E | 3.72 mg | 1.57 mg | 25% |
| Vitamin K | Not reported | Not reported | – |
| Vitamin B6 | 0.64 mg | 0.27 mg | 38% |
| Vitamin B12 | 2.51 µg | 1.06 µg | 105% |
| Folate (DFE) | Not reported | Not reported | – |
| Thiamin (B1) | 0.45 mg | 0.19 mg | 38% |
| Riboflavin (B2) | 0.51 mg | 0.22 mg | 40% |
| Niacin (B3) | 18.3 mg | 7.73 mg | 114% |
| Caffeine | Not reported | Not reported | – |
| Alcohol | Not reported | Not reported | – |
| Water | 138 g | 58.2 g | – |
% Daily Value is how much one item contributes to the FDA Daily Values for adults and children 4 years and older, the figures on US nutrition labels; a dash means there is no Daily Value for that nutrient. “Not reported” means USDA has no measurement for this item, not that it contains none.
How a Subway Tuna Sub compares with other Subway items
Of the 6 Subway items on this site, the Tuna Sub ranks 1st for calories per item, 1st for protein and 1st for fat, counting from the highest. Items are compared at the USDA portion listed for each, so a sandwich and a side of fries are not the same size.
| Item | Portion | Calories | Protein | Fat |
|---|---|---|---|---|
| Tuna Sub (this page) | 6 inch sub | 524 kcal | 29.2 g | 28.5 g |
| Meatball Marinara Sub | 6 inch sub | 458 kcal | 20.4 g | 17.7 g |
| Cold Cut Sub | 6 inch sub | 419 kcal | 20.6 g | 19.7 g |
| Oven Roasted Chicken Sub | 6 inch sub | 311 kcal | 21.5 g | 6.2 g |
| Club Sub | 6 inch sub | 302 kcal | 22.1 g | 5 g |
About these numbers
USDA FoodData Central describes this record as “SUBWAY, tuna sub on white bread with lettuce and tomato” (FoodData Central SR Legacy 2018-04). It is a laboratory analysis of the item as USDA sampled it, not the menu data a company publishes today. SR Legacy was closed in 2018 and is not updated, so the figures are a snapshot.
Restaurants change recipes, suppliers and portion sizes, and the item you order can differ from the one USDA sampled. For the current figures, use the nutrition information Subway publishes itself. Use this page to estimate, not to settle an allergy or a medical question.
USDA reported 26 of the 31 nutrients this page tracks for the record; the rest show as “Not reported”.
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Start free on the webUSDA analysis from the 2018 SR Legacy release; the chain's current recipe may differ — check the chain's own nutrition information. This is general information, not medical advice. If you are pregnant, under 18 or managing a health condition, talk to a doctor or registered dietitian before changing how you eat.
Source: USDA FoodData Central, FDC 170316, retrieved . How we calculate.