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How Many Calories in a Subway Tuna Sub On White Bread with Lettuce and Tomato?

✓ Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by Jordan Morley, Editorial Reviewer. Last reviewed: 27 October 2026.

Fact-checked against original USDA source data by Jordan Morley, Editorial Reviewer. Not a registered dietitian — nutrition figures are sourced directly from USDA FoodData Central, not independently assessed medical advice.

524
calories per 6 inch sub
221 calories per 100g

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29.2gProtein
37.7gCarbs
28.4gFat
1.7gFibre
grams
524kcal
29.2gprotein
37.7gcarbs
28.4gfat
1.7gfibre

A Subway Tuna Sub On White Bread with Lettuce and Tomato contains 524 calories per 6 inch sub (237g), with 29.2g protein, 37.7g carbs and 28.4g fat. Track it precisely with a digital kitchen scale.

Subway Tuna Sub On White Bread with Lettuce and Tomato Nutrition Facts

NutrientPer serving (237g)Per 100g
Calories524 kcal221 kcal
Protein29.2g12.3g
Carbohydrates37.7g15.9g
of which Sugars4.5g1.9g
Fat28.4g12.0g
of which Saturates5.2g2.2g
Fibre1.7g0.7g
Sodium780mg329.0mg
Potassium419mg177.0mg
Calcium322mg136.0mg
Iron3.8mg1.6mg
Vitamin C0.0mg0.0mg
Vitamin A26µg11.0µg
Selenium93µg39.2µg
Riboflavin (B2)0.5mg0.2mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

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Good to know

Customisations (extra cheese, sauce, no bun) change the numbers meaningfully — the figures here are for the standard menu item as sold.

Frequently Asked Questions

How many calories in a Subway Tuna Sub On White Bread with Lettuce and Tomato?

A Subway Tuna Sub On White Bread with Lettuce and Tomato contains 524 calories per 6 inch sub.

Is a Subway Tuna Sub On White Bread with Lettuce and Tomato unhealthy?

A Subway Tuna Sub On White Bread with Lettuce and Tomato has 524 calories and 28.4g of fat per serving — fine occasionally, best in moderation.

Similar items by calorie count

Other fast food items closest to subway tuna sub on white bread with lettuce and tomato by calories per 100g:

ItemCaloriesProteinCarbsFat
Subway Tuna Sub On White Bread with Lettuce and Tomato (this page)221 kcal12.3g15.9g12.0g
Wendy's Classic Single Hamburger, with Cheese221 kcal14.9g14.2g11.6g
McDonald's Premium Grilled Chicken Club Sandwich221 kcal17.2g19.9g8.1g
McDonald's Ranch Snack Wrap, Grilled222 kcal13.8g18.4g10.3g
Subway Meatball Marinara Sub On White Bread (no Toppings)219 kcal9.8g26.0g8.4g
Taco Bell Nachos Supreme223 kcal6.2g21.4g12.5g
Taco Bell Soft Taco with Steak225 kcal11.8g17.2g12.1g

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Last updated:

Figures from the USDA FoodData Central Branded Foods dataset (CC0 1.0).