How many calories are in Mcdonald'S, Big Mac?

A 100 g serving of Mcdonald'S, Big Mac has 257 kcal. The calories in your portion depend on its weight and how it is prepared.

How much protein is in Mcdonald'S, Big Mac?

Per 100 g there are 11.8 g of protein — about 24% of the Daily Value (50 g).

How much fat and carbs are in Mcdonald'S, Big Mac?

Per 100 g there are 15 g of fat and 20.1 g of carbohydrate, including 1.6 g of fiber.

What nutrients is Mcdonald'S, Big Mac high in?

Per 100 g it notably contributes to your Daily Value for: Protein (24% DV), Iron (11% DV).

Prepared Foods

Mcdonald'S, Big Mac

USDA reference values for mcdonald's, big mac (per 100 g).

257kcalCalories

11.8gProtein

15gFat

20.1gCarbs

Protein, fat and carb balance

Share of calories from each macronutrient (per 100 g).

Protein 18.3%
Fat 52%
Carbs 29.8%

What this food is high in

24% Protein 11.8 g / 100 g 11% Iron 2 mg / 100 g

Shown as percent of the Daily Value per 100 g.

Full nutrition facts (per 100 g)

Nutrient	Per 100 g	% DV*
Macronutrients
Protein	11.8 g	24%
Total Fat	15 g	19%
Saturated Fat	3.8 g	19%
Carbohydrate	20.1 g	7%
Dietary Fiber	1.6 g	6%
Total Sugars	4 g	8%
Minerals
Sodium	460 mg	20%
Potassium	181 mg	4%
Calcium	116 mg	9%
Iron	2 mg	11%
Magnesium	20 mg	5%
Vitamins
Vitamin C	0.4 mg	<1%
Vitamin A	—
Vitamin D	—
Other
Cholesterol	36 mg	12%

* Percent of the Daily Value (Daily Value, based on a 2,000 kcal diet).

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Frequently asked questions

How many calories are in Mcdonald'S, Big Mac?: A 100 g serving of Mcdonald'S, Big Mac has 257 kcal. The calories in your portion depend on its weight and how it is prepared.
How much protein is in Mcdonald'S, Big Mac?: Per 100 g there are 11.8 g of protein — about 24% of the Daily Value (50 g).
How much fat and carbs are in Mcdonald'S, Big Mac?: Per 100 g there are 15 g of fat and 20.1 g of carbohydrate, including 1.6 g of fiber.
What nutrients is Mcdonald'S, Big Mac high in?: Per 100 g it notably contributes to your Daily Value for: Protein (24% DV), Iron (11% DV).

Similar foods and comparisons

Acorn Stew (Apache) 95 kcal 6.8 g protein Agave, Cooked (Southwest) 135 kcal 1 g protein Agave, Dried (Southwest) 341 kcal 1.7 g protein Agave, Raw (Southwest) 68 kcal 0.5 g protein Agutuk 353 kcal 3.4 g protein Agutuk 258 kcal 21.7 g protein

Compare Mcdonald'S, Big Mac with: Acorn Stew (Apache) Agave, Cooked (Southwest) Agave, Dried (Southwest) Agave, Raw (Southwest)

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.