Carbs in McDonald's Medium French Fries
How many carbs are in mcdonald's medium french fries?
McDonald's Medium French Fries has 30.8g net carbs per 100g — 34.2g total carbs minus 3.4g fiber — plus 3.4g protein, 12.8g fat, and 274 calories. 1 medium order (117g) works out to about 36g net carbs and 321 calories. That makes mcdonald's medium french 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 medium 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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McDonald's Medium French 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 medium french fries keto-friendly?
McDonald's Medium French Fries is generally not keto-friendly. It has 30.8g net carbs per 100g (34.2g total carbs − 3.4g fiber). A typical serving — 1 medium order (117g) — is about 36g 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 medium order | 36g | 40g | 4g | 321 |
| 100 g (3.5 oz) | 30.8g | 34.2g | 3.4g | 274 |
| 1 oz (28 g) | 8.6g | 9.6g | 1g | 77 |
How many calories are in mcdonald's medium french fries?
McDonald's Medium French Fries has 274 calories per 100g. 1 medium order (117g) has about 321 calories. That's alongside 3.4g protein, 12.8g fat, and 30.8g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 274 |
| Total carbs | 34.2g |
| Net carbs | 30.8g |
| Fiber | 3.4g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 3.4g |
| Fat | 12.8g |
| Sodium | 197mg |
| 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 medium french fries?
- McDonald's Medium French Fries has 34.2g of total carbs and 30.8g of net carbs per 100 grams.
- How many net carbs are in mcdonald's medium french fries?
- McDonald's Medium French Fries has 30.8g of net carbs per 100 grams (total carbs 34.2g minus 3.4g fiber).
- Is mcdonald's medium french fries keto-friendly?
- McDonald's Medium French Fries is generally not keto-friendly. It has 30.8g net carbs per 100g (34.2g total carbs − 3.4g fiber). A typical serving — 1 medium order (117g) — is about 36g 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 medium french fries?
- McDonald's Medium French Fries has 274 calories per 100 grams.
- How many carbs are in 1 medium order?
- 1 medium order (117g) has about 36g net carbs, 40g total carbs, and 321 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.