A 6" Subway Tuna on Artisan Flatbread contains 665 calories.
A 6" Subway Tuna on Artisan Flatbread has 43g of total carbohydrates, including 1g of dietary fibre and 3g of sugar.
A 6" Subway Tuna on Artisan Flatbread contains 25g of protein and 45g of total fat (9g saturated).
A 6" Subway Tuna on Artisan Flatbread contains 955mg of sodium.
About the calorie calculator
Frequently asked questions
This calculator starts with the standard ingredients for each Subway sandwich. You can add, remove, or swap ingredients and adjust portion sizes — the nutrition totals update in real time based on the nutritional data for each individual ingredient.
Yes. Use the ingredient sections to add or remove proteins, cheeses, sauces, vegetables, and seasonings. Each change is reflected instantly in the nutrition label below.
Toggle the size switch to Footlong. All nutritional values are doubled, since a footlong is two 6-inch servings.
Nutrition data is sourced from Subway's official nutritional disclosures. Custom modifications are estimated using per-ingredient nutritional data. Results are an approximation and may vary slightly from what Subway reports for fully custom orders.
No. This is an independent nutrition calculator created to help customers estimate calories and macros in their Subway orders. We are not affiliated with, endorsed by, or sponsored by Subway. All nutritional data is sourced from publicly available Subway nutrition information.
