Carbs in Big Mac
Big Mac (per 100 g) contains 18.1g total carbs, 16.5g net carbs, 11.6g fat, 11.6g protein, and 228 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
16.5g
Net carbs
18.1g
Total carbs
1.6g
Fiber
11.6g
Protein
11.6g
Fat
228
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 16.5g | 18.1g | 11.6g | 228 |
| 1 oz (28 g) | 4.6g | 5.1g | 3.2g | 64 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 228 |
| Total carbs | 18.1g |
| Net carbs | 16.5g |
| Fiber | 1.6g |
| Sugar | 3.4g |
| Sugar alcohols | 0g |
| Protein | 11.6g |
| Fat | 11.6g |
| Sodium | 397mg |
| Potassium | 0mg |
Source: Open Food Facts (McDonald's). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in big mac?
- Big Mac has 18.1g of total carbs and 16.5g of net carbs per 100 grams.
- How many net carbs are in big mac?
- Big Mac has 16.5g of net carbs per 100 grams (total carbs 18.1g minus 1.6g fiber).
- Is big mac keto-friendly?
- Big Mac has 16.5g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
- How many calories are in big mac?
- Big Mac has 228 calories per 100 grams.
