Carbs in Mcdonalds Big Fries
Mcdonalds Big Fries (per 100 g) contains 37g total carbs, 37g net carbs, 22g fat, 3.4g protein, and 448 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
37g
Net carbs
37g
Total carbs
0g
Fiber
3.4g
Protein
22g
Fat
448
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 37g | 37g | 3.4g | 448 |
| 1 oz (28 g) | 10.4g | 10.4g | 1g | 125 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 448 |
| Total carbs | 37g |
| Net carbs | 37g |
| Fiber | 0g |
| Sugar | 0.5g |
| Sugar alcohols | 0g |
| Protein | 3.4g |
| Fat | 22g |
| Sodium | 288mg |
| Potassium | 0mg |
Source: Open Food Facts (McDonald'sMcCain). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in mcdonalds big fries?
- Mcdonalds Big Fries has 37g of total carbs and 37g of net carbs per 100 grams.
- How many net carbs are in mcdonalds big fries?
- Mcdonalds Big Fries has 37g of net carbs per 100 grams (total carbs 37g minus 0g fiber).
- Is mcdonalds big fries keto-friendly?
- Mcdonalds Big Fries has 37g 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 mcdonalds big fries?
- Mcdonalds Big Fries has 448 calories per 100 grams.
