Calories in a Tortilla: Flour, Corn, By Size

A medium 8-inch flour tortilla contains approximately 146 calories, 25 g of carbohydrate, 4 g of protein, and 3.5 g of fat, according to USDA FoodData Central (FDC ID 1100675). Corn tortillas are substantially lighter: a 6-inch corn tortilla averages just 52 calories. The gap widens at larger sizes, making type and diameter the two biggest levers for anyone tracking intake.

Calories and Macros by Type and Size

The table below uses USDA FoodData Central reference values. “Net carbs” subtracts dietary fiber from total carbohydrate.

Tortilla type	Size	Calories	Carbs (g)	Net carbs (g)	Protein (g)	Fat (g)
Flour, regular	6-inch	90	15	14	2.5	2.0
Flour, regular	8-inch (medium)	146	25	24	4.0	3.5
Flour, regular	10-inch (burrito)	218	36	35	5.5	5.5
Flour, regular	12-inch (large wrap)	290	49	47	7.5	7.0
Corn, white or yellow	6-inch	52	11	10	1.4	0.7
Corn, white or yellow	4.5-inch (street taco)	35	7	6.5	1.0	0.5
Flour, low-carb	8-inch	75	19	5	4.0	2.5
Flour, whole wheat	8-inch	130	23	20	4.5	3.0

Values are per single tortilla as purchased. Cooking a tortilla on a dry skillet adds negligible calories; brushing with oil or butter adds roughly 40 calories per teaspoon of fat applied.

Macros Breakdown

Flour tortillas draw most calories from refined carbohydrate (about 67% of total energy), with the rest from added shortening fat and a small wheat-gluten protein contribution. Corn tortillas are also primarily carbohydrate but are naturally fat-free, with 1-1.5 g of fiber per tortilla from nixtamalized masa. Low-carb flour varieties cut net carbs dramatically by substituting wheat fiber — use the net carbs calculator to compare your specific brand.

Both types are low in protein on their own; fillings carry the protein load, so size the tortilla to leave room in your macro budget.

Does It Fit Your Goals?

Weight loss: Two street-taco-size corn tortillas cost roughly 70 calories versus a single 10-inch flour burrito wrap at 218 calories — a gap of nearly 150 calories before any filling is added. Over a week of daily lunches that swap alone can total 700-1,000 calories saved. See counting calories to lose weight for how to build this kind of swap into a sustainable deficit.

Blood sugar: Both types carry a moderate glycemic index (GI roughly 52-58 for flour, ~52 for corn), but the smaller corn tortilla brings glycemic load per serving down considerably. Pairing either with fat, fiber, and protein blunts the glucose response. Use the glycemic load calculator to estimate the impact of your specific filling combination.

Diabetes management: A 10-inch flour burrito wrap alone delivers 36 g total carbohydrate. Corn tortillas at the 4.5-inch street-taco size keep per-tortilla carbs under 8 g — a more manageable choice for carb-counted meals.

Reading Labels on Store Brands

Declared serving sizes vary: some brands define one serving as two tortillas, others as one. Always check the “number of tortillas per serving” before multiplying. Calorie differences between brands at the same labeled diameter can range from 10 to 30 calories depending on thickness and fat content. Weighing on a kitchen scale against the grams-per-serving on the label is the most accurate approach.

Snap a photo of your plate before you eat and let CalEye log the tortilla type, size, and toppings in seconds — no label-reading required.