How many carbs are in a 6 inch flatbread from Subway?

December 30, 2025 •

3 min read

According to the Nutritionix database, a plain 6-inch flatbread from Subway contains 24 grams of total carbohydrates. This figure is important for anyone tracking their macronutrient intake, as the final carb count of your sandwich will depend heavily on the fillings and sauces you choose.

Quick Summary

A plain 6-inch flatbread from Subway has 24g of carbohydrates. The total carb count for a finished sandwich can vary significantly, impacted by the specific meats, cheeses, vegetables, and sauces added to the flatbread.

Key Points

Carb Count: A plain 6-inch flatbread from Subway contains 24 grams of carbohydrates.
Filling Impact: The total carbohydrate count of your sandwich will increase significantly based on the meats, cheeses, and especially the sauces you choose.
Regional Differences: Nutritional information for flatbread can vary by region due to different ingredients and formulations, so always check local menus.
Lower-Carb Alternatives: For drastically fewer carbs, opt for a salad or protein bowl instead of bread.
Healthiest Bread Options: The plain flatbread is a relatively lower-calorie option compared to other Subway breads, but not the lowest in carbs depending on the region.
Sauce is Key: Sauces like sweet onion teriyaki add a substantial amount of sugar and carbohydrates, while mustard or oil and vinegar are lower-carb options.

Understanding the Carb Count for a Subway Flatbread

The plain 6-inch flatbread from Subway serves as a base for a variety of sandwiches, and its carbohydrate content is the starting point for calculating your meal's nutritional profile. With 24 grams of carbs, it ranks as one of the lower-carb bread options available at Subway. However, it's crucial to understand that this number only represents the bread itself and not the total carb count of a completed sandwich. The addition of protein, vegetables, cheese, and especially sauces can alter the nutritional values significantly.

Breakdown of the Plain Flatbread's Nutrition

To make informed dietary choices, consider the full nutritional composition of the bread itself, as well as the impact of various additions. The base 6-inch flatbread offers the following macronutrient breakdown:

Total Carbohydrates: 24g
Net Carbs: 23g (after subtracting 1g of dietary fiber)
Total Fat: 3g
Protein: 4g
Calories: 140

It is important to note that nutritional information can vary by region due to different formulations and ingredients. Always check the official nutrition information provided by Subway in your specific country to get the most accurate data for your location.

How Fillings and Toppings Impact Total Carbs

The final carbohydrate count of your Subway sandwich can increase rapidly depending on what you add. Here are a few examples to illustrate this point, based on data available for different sandwich combinations:

Meats and Cheese: The Subway Club on flatbread has around 44g of total carbs, significantly higher than the plain bread alone.
Sauces: Adding a sweet onion teriyaki sauce, for instance, can drastically increase the sugar and carb content. For example, a footlong Sweet Onion Chicken Teriyaki on flatbread (two 6-inch servings) has 117g of carbs.
Breakfast Options: An Egg & Cheese flatbread sandwich contains 43g of carbs according to one source, while another suggests 27g, highlighting potential regional variations and the significant carb contribution from eggs and cheese compared to the bread alone.

Comparison of Subway Bread Options

For carb-conscious individuals, comparing the flatbread to other available bread choices is essential. The following table provides a comparison of a plain 6-inch flatbread versus a standard 6-inch sub roll, using typical US nutrition information, though specific figures may vary.


Bread Type (6-inch)	Total Carbs (g)	Dietary Fiber (g)	Net Carbs (g)	Protein (g)
Plain Flatbread	24	1	23	4
9-Grain Wheat	36	4	32	9
Artisan Italian	37	2	35	9
Italian Herbs & Cheese	40	2	38	10

Note: Data for 9-Grain Wheat and Artisan Italian may vary by source and region. Values are approximations based on available nutrition tables.

Tips for Reducing Carbs with Your Subway Order

If you are aiming for a lower-carb meal at Subway, here are some actionable tips:

Go for a Salad Bowl: Completely eliminate bread and opt for a salad bowl, which allows you to enjoy the fillings and vegetables without the added carbs.
Prioritize Lean Protein: Choose grilled chicken, turkey breast, or tuna as your protein base to boost satiety with minimal carbs.
Load Up on Veggies: Maximize your intake of low-carb, nutrient-dense vegetables like lettuce, spinach, cucumbers, and bell peppers.
Choose Sauces Wisely: Many sauces, especially sweet ones like teriyaki or sweet onion, are packed with added sugars and carbs. Opt for vinaigrettes, mustard, or oil and vinegar instead.
Select Lower-Carb Cheeses: Some cheese options have more carbs than others. While cheese is not a major source, for a strict low-carb diet, it's worth checking the specific values.

For the most up-to-date and comprehensive nutritional data, refer to the official Subway US nutrition information PDF.

Conclusion

In summary, a plain 6-inch flatbread from Subway contains 24 grams of carbohydrates, making it one of the more moderate-carb bread options on their menu. However, the total carbohydrate count of a sandwich is significantly influenced by the chosen fillings and sauces. By being mindful of your additions, you can effectively manage the carbohydrate content of your Subway meal. For those following a very low-carb diet, opting for a salad bowl remains the most effective strategy to avoid bread altogether while still enjoying the fresh ingredients.

Frequently Asked Questions

While the plain flatbread contains 24 grams of carbohydrates, it is not considered a low-carb option for those on a strict low-carb or ketogenic diet. Other bread alternatives, such as a salad bowl, are better for minimizing carb intake.

Toppings and sauces can increase the total carb count significantly. Sweet sauces like teriyaki or sweet onion contain added sugars, and even certain cheeses and meats contribute to the total. A simple veggie sub with low-carb sauces will have a much lower carb count than a complex or breakfast sandwich.

The plain 6-inch flatbread's 24 grams of carbs is generally comparable to or slightly lower than other standard 6-inch breads like 9-Grain Wheat or Artisan Italian, which typically have around 36-37 grams of carbs, though regional variations exist.

The carb count for a flatbread sandwich with fillings can vary widely. For example, a 6-inch Subway Club on flatbread has approximately 44g of carbs, while a flatbread breakfast sandwich could have 27g to 43g depending on the ingredients and regional recipe.

Yes, for a meal with fewer carbs, you can order a sub as a salad or protein bowl without any bread at all. This allows you to enjoy the fresh vegetables and protein while completely eliminating the carbohydrates from the bread.

Yes, according to some analyses, the plain flatbread is one of the lowest-calorie bread options, with 140 calories in a 6-inch serving. However, calorie and carb content can vary independently.

The most accurate nutritional information for Subway's products can be found on the official Subway website for your specific region, often available as a downloadable PDF.