Calories in Big Mac
A McDonald's Big Mac contains 550 kcal with 25g of protein, 45g of carbs, and 30g of fat. The full meal with fries and Coke reaches ~1,100 kcal.
Nutrition by portion size
| Portion | kcal | Carbs (g) | Protein (g) | Fat (g) | Fiber (g) |
|---|---|---|---|---|---|
| 1 Big Mac | 550 | 45 | 25 | 30 | 3 |
| Big Mac meal (medium fries + Coke) | 1090 | 152 | 32 | 45 | 8 |
| Big Mac meal (large fries + Coke) | 1340 | 184 | 35 | 53 | 10 |
| 100g Big Mac | 251 | 21 | 11 | 14 | 1.4 |
About these numbers
The Big Mac is one of the most iconic fast food items — and a useful benchmark for fast food calorie tracking. At 550 kcal for the sandwich alone, it represents about 30% of a daily 1,800 kcal target. The full meal (1,090 kcal) is over 60% of a daily target — challenging to fit into structured weight loss eating without sacrificing other meals.
Use the calculators
- Calorie Deficit Calculator — find how this portion fits your daily target
- Glycemic Load Calculator — compute exact GL for any serving size
- Macro Calculator — set protein, carb, fat splits for cut/maintain/bulk
- Net Carbs Calculator — useful for keto and T1D insulin dosing
Related foods
Frequently asked questions
- How many calories in a Big Mac?
- The sandwich alone: 550 kcal. With medium fries: 880 kcal. Full meal (Big Mac + medium fries + medium Coke): ~1,090 kcal. Large meal: ~1,340 kcal. The fries and soda often add more calories than the burger itself.
- Is a Big Mac bad for weight loss?
- The sandwich alone (550 kcal) can fit in a 2,000+ kcal daily target. The meal (1,090+ kcal) is more challenging. The 2017 Hall et al. NIH study on ultra-processed foods showed people ate 500+ extra kcal/day when these foods were available. For weight loss: occasional indulgence, eat sandwich only (skip fries), drink water or diet soda.
- Healthier alternatives at McDonalds?
- Grilled chicken sandwich (~350 kcal). Apple slices + grilled chicken salad (~400 kcal with light dressing). Egg McMuffin (~300 kcal) for breakfast. These are 50-60% lower in calories with similar protein.
- Big Mac vs Whopper?
- Big Mac: 550 kcal. Whopper: 660 kcal. Both calorie-dense. Comparing per gram, Whopper is slightly less dense (~244 vs 251 kcal/100g). The differences are within tracking noise — calorie discipline matters more than chain choice.
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