French Fries at McDonald's (Medium) Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per Medium serving (117g), 117g; per 100 g: 33.6g net carbs, 276 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 french fries at mcdonald's (medium)?
French Fries at McDonald's (Medium) — Medium serving (117g), 117g — has 39.3g net carbs: 43.1g total carbs minus 3.7g fiber, plus 3.9g protein, 15g fat, and 323 calories. Per 100g that is 33.6g net carbs (36.8g total carbs, 3.2g fiber) and 276 calories. That makes french fries at mcdonald's (medium) high in net carbs and about average for the typical fast-food item, which averages about 26.2g net carbs per 100g. At this carb count, french fries at mcdonald's (medium) 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 french fries at mcdonald's (medium) keto-friendly?
French Fries at McDonald's (Medium) is generally not keto-friendly. Medium serving (117g), 117g is 39.3g net carbs (43.1g total carbs − 3.7g fiber); per 100g that is 33.6g 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 french fries at mcdonald's (medium)?
French Fries at McDonald's (Medium) 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 |
|---|---|---|---|---|
| Medium serving (117g) | 39.3g | 43.1g | 3.9g | 323 |
| 100 g (3.5 oz) | 33.6g | 36.8g | 3.3g | 276 |
| 1 oz (28 g) | 9.4g | 10.3g | 0.9g | 77 |
How many calories are in french fries at mcdonald's (medium)?
French Fries at McDonald's (Medium) — Medium serving (117g), 117g — has 323 calories, with 3.9g protein, 15g fat, and 39.3g net carbs. Per 100g: 276 calories and 33.6g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 276 |
| Total carbs | 36.8g |
| Net carbs | 33.6g |
| Fiber | 3.2g |
| Sugar | 0.3g |
| Sugar alcohols | 0g |
| Protein | 3.3g |
| Fat | 12.8g |
| Sodium | 342mg |
| Potassium | 579mg |
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 french fries at mcdonald's (medium)?
- French Fries at McDonald's (Medium) (Medium serving (117g), 117g) has 43.1g of total carbs and 39.3g of net carbs. Per 100 grams: 36.8g total, 33.6g net.
- How many net carbs are in french fries at mcdonald's (medium)?
- French Fries at McDonald's (Medium) has 39.3g of net carbs per Medium serving (117g), 117g — 43.1g total carbs minus 3.7g fiber.
- Is french fries at mcdonald's (medium) keto-friendly?
- French Fries at McDonald's (Medium) is generally not keto-friendly. Medium serving (117g), 117g is 39.3g net carbs (43.1g total carbs − 3.7g fiber); per 100g that is 33.6g 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 french fries at mcdonald's (medium)?
- French Fries at McDonald's (Medium) (Medium serving (117g), 117g) has 323 calories; that is 276 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.