Pick your sandwich, bread, size and toppings to see calories, protein, carbs, fat and sodium add up in real time. Based on Subway's published nutrition values, which vary by location and preparation.
Estimates based on published Subway values. Portions vary by location and preparation.
A Subway sandwich is built in layers, and the calorie math changes at each one. The bread is the foundation, but size is the multiplier that most people overlook. A footlong is not just a bigger sandwich; it is literally double the bread, double the filling, and in most cases close to double the calories of a 6 inch.
Bread choice is the next lever. Italian white and 9-grain wheat are both around 190 to 210 calories for a 6 inch. The multigrain flatbread runs slightly lower in calories but cuts carbs more noticeably. The spinach wrap lands in a similar range to white bread but adds a small fiber boost.
The filling spreads are where the numbers jump. A serving of mayo adds about 110 calories and 12 grams of fat to a 6 inch sub. Ranch is similar. Mustard, on the other hand, adds almost nothing; same story for the sweet onion sauce, which is sweet but low in fat. Cheese adds 40 to 50 calories per slice, and most 6 inch subs get one slice while footlongs get two.
Protein is the strongest argument for a Subway sub. Turkey, chicken and roast beef all deliver 18 to 24 grams of protein per 6 inch serving before cheese. The tuna is calorie-dense because it is mixed with mayo, but still hits high protein. Meatball marinara is the highest-calorie filling by a wide margin due to the fat in the meatballs and the sugar in the sauce.
Check a Chipotle bowl, a Panera salad or a Starbucks drink the same way.
A 6 inch Subway sandwich runs between 300 and 600 calories for most builds. Turkey and Veggie Delight sit at the low end. Chicken and Bacon Ranch or a BMT load up faster. The footlong simply doubles everything, so expect 600 to 1,200 calories for the same sandwich in a bigger size. Use the calculator above to see your exact order.
A footlong ranges from around 560 calories for a plain turkey with veggies and mustard to over 1,200 for a BMT or meatball marinara with cheese and mayo. The bread alone accounts for about 380 to 420 of those calories on most loaf styles. Sauce and cheese add 100 to 300 more depending on what you pick.
Subway can fit into a prediabetic eating plan when you make deliberate choices. A 6 inch sub on multigrain flatbread or wheat bread, stacked with non-starchy veggies, a lean protein like turkey or chicken, mustard instead of mayo, and no cheese keeps the carb load reasonable at 45 to 55 grams. The sweet sauces, like sweet onion and honey mustard, add sugar worth watching. Talk with your doctor or a registered dietitian about your specific targets.
The 6 inch Veggie Delight on multigrain flatbread with mustard and no cheese is one of the lightest options, around 230 calories. The 6 inch Turkey Breast is close behind at roughly 280 calories before extras. Choosing a salad base instead of bread cuts carbs the most.
Jessica Martinez writes about food, menus and the gap between what a meal looks like and what it actually adds up to. She reads nutrition labels for fun and has strong opinions about which Subway sauce is worth the calories.