Carbs in McDonald's Large Fries
How many carbs are in mcdonald's large fries?
McDonald's Large Fries has 33.9g net carbs per 100g — 37.3g total carbs minus 3.4g fiber — plus 4g protein, 13g fat, and 277 calories. 1 large order (177g) works out to about 60g net carbs and 490 calories. That makes mcdonald's large fries high in net carbs and about average for the typical fast-food item, which averages about 26.8g net carbs per 100g. At this carb count, mcdonald's large 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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McDonald's Large Fries runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is mcdonald's large fries keto-friendly?
McDonald's Large Fries is generally not keto-friendly. It has 33.9g net carbs per 100g (37.3g total carbs − 3.4g fiber). A typical serving — 1 large order (177g) — is about 60g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 large order | 60g | 66g | 7.1g | 490 |
| 100 g (3.5 oz) | 33.9g | 37.3g | 4g | 277 |
| 1 oz (28 g) | 9.5g | 10.4g | 1.1g | 78 |
How many calories are in mcdonald's large fries?
McDonald's Large Fries has 277 calories per 100g. 1 large order (177g) has about 490 calories. That's alongside 4g protein, 13g fat, and 33.9g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 277 |
| Total carbs | 37.3g |
| Net carbs | 33.9g |
| Fiber | 3.4g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 4g |
| Fat | 13g |
| Sodium | 226mg |
| Potassium | 0mg |
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 fries?
- McDonald's Large Fries has 37.3g of total carbs and 33.9g of net carbs per 100 grams.
- How many net carbs are in mcdonald's large fries?
- McDonald's Large Fries has 33.9g of net carbs per 100 grams (total carbs 37.3g minus 3.4g fiber).
- Is mcdonald's large fries keto-friendly?
- McDonald's Large Fries is generally not keto-friendly. It has 33.9g net carbs per 100g (37.3g total carbs − 3.4g fiber). A typical serving — 1 large order (177g) — is about 60g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in mcdonald's large fries?
- McDonald's Large Fries has 277 calories per 100 grams.
- How many carbs are in 1 large order?
- 1 large order (177g) has about 60g net carbs, 66g total carbs, and 490 calories.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.