Carbs in McDonald's Large French Fries

How many carbs are in mcdonald's large french fries?

McDonald's Large French Fries has 39g net carbs per 100g — 42.9g total carbs minus 3.9g fiber — plus 4.5g protein, 14.9g fat, and 318 calories. 1 large order (154g) works out to about 60.1g net carbs and 490 calories. That makes mcdonald's large french fries high in net carbs and higher than the typical fast-food item, which averages about 27.6g net carbs per 100g. At this carb count, mcdonald's large french fries is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.

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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

McDonald's Large French Fries
39g
Net carbs
42.9g
Total carbs
3.9g
Fiber
4.5g
Protein
14.9g
Fat
318
Calories

Values per 100 g.

Carbs by serving size

ServingNet carbsTotal carbsCalories
1 large order60.1g66.1g490
100 g (3.5 oz)39g42.9g318
1 oz (28 g)10.9g12g89

How many calories are in mcdonald's large french fries?

McDonald's Large French Fries has 318 calories per 100g. 1 large order (154g) has about 490 calories. That's alongside 4.5g protein, 14.9g fat, and 39g net carbs per 100g.

Nutrition facts

NutrientAmount (per 100 g)
Calories318
Total carbs42.9g
Net carbs39g
Fiber3.9g
Sugar0g
Sugar alcohols0g
Protein4.5g
Fat14.9g
Sodium260mg
Potassium584mg

Source: Manufacturer-reported values (fast-food). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in mcdonald's large french fries?
McDonald's Large French Fries has 42.9g of total carbs and 39g of net carbs per 100 grams.
How many net carbs are in mcdonald's large french fries?
McDonald's Large French Fries has 39g of net carbs per 100 grams (total carbs 42.9g minus 3.9g fiber).
Is mcdonald's large french fries keto-friendly?
McDonald's Large French Fries has 39g 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 mcdonald's large french fries?
McDonald's Large French Fries has 318 calories per 100 grams.
How many carbs are in 1 large order?
1 large order (154g) has about 60.1g net carbs, 66.1g total carbs, and 490 calories.

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