McDonald's Large Fries Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 large fries (154g); per 100 g: 39g net carbs, 318 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in mcdonald's large fries?
McDonald's Large Fries — 1 large fries (154g) — has 60.1g net carbs: 66.1g total carbs minus 6g fiber, plus 6.9g protein, 22.9g fat, and 490 calories. Per 100g that is 39g net carbs (42.9g total carbs, 3.9g fiber) and 318 calories. That makes mcdonald's large fries high in net carbs and higher than the typical fast-food item, which averages about 26.2g 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 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is mcdonald's large fries keto-friendly?
McDonald's Large Fries is generally not keto-friendly. 1 large fries (154g) is 60.1g net carbs (66.1g total carbs − 6g fiber); per 100g that is 39g 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.
Keeping an eye on carbs in mcdonald's large fries?
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.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 large fries | 60.1g | 66.1g | 6.9g | 490 |
| 100 g (3.5 oz) | 39g | 42.9g | 4.5g | 318 |
| 1 oz (28 g) | 10.9g | 12g | 1.3g | 89 |
How many calories are in mcdonald's large fries?
McDonald's Large Fries — 1 large fries (154g) — has 490 calories, with 6.9g protein, 22.9g fat, and 60.1g net carbs. Per 100g: 318 calories and 39g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 318 |
| Total carbs | 42.9g |
| Net carbs | 39g |
| Fiber | 3.9g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 4.5g |
| Fat | 14.9g |
| Sodium | 260mg |
| Potassium | 487mg |
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 (1 large fries, 154g) has 66.1g of total carbs and 60.1g of net carbs. Per 100 grams: 42.9g total, 39g net.
- How many net carbs are in mcdonald's large fries?
- McDonald's Large Fries has 60.1g of net carbs per 1 large fries (154g) — 66.1g total carbs minus 6g fiber.
- Is mcdonald's large fries keto-friendly?
- McDonald's Large Fries is generally not keto-friendly. 1 large fries (154g) is 60.1g net carbs (66.1g total carbs − 6g fiber); per 100g that is 39g 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 (1 large fries, 154g) has 490 calories; that is 318 calories per 100 grams.
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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.