McDonald's Medium Fries Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 medium fries (111g); per 100 g: 35.1g net carbs, 288 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 medium fries?
McDonald's Medium Fries — 1 medium fries (111g) — has 39g net carbs: 43g total carbs minus 4g fiber, plus 4g protein, 15g fat, and 320 calories. Per 100g that is 35.1g net carbs (38.7g total carbs, 3.6g fiber) and 288 calories. That makes mcdonald's medium 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 medium 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 medium fries keto-friendly?
McDonald's Medium Fries is generally not keto-friendly. 1 medium fries (111g) is 39g net carbs (43g total carbs − 4g fiber); per 100g that is 35.1g 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 medium fries?
McDonald's Medium 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 medium fries | 39g | 43g | 4g | 320 |
| 100 g (3.5 oz) | 35.1g | 38.7g | 3.6g | 288 |
| 1 oz (28 g) | 9.8g | 10.8g | 1g | 81 |
How many calories are in mcdonald's medium fries?
McDonald's Medium Fries — 1 medium fries (111g) — has 320 calories, with 4g protein, 15g fat, and 39g net carbs. Per 100g: 288 calories and 35.1g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 288 |
| Total carbs | 38.7g |
| Net carbs | 35.1g |
| Fiber | 3.6g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 3.6g |
| Fat | 13.5g |
| Sodium | 234mg |
| Potassium | 504mg |
Source: Manufacturer-reported values (fast-food). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
Log mcdonald's medium fries in one tap
Snap a photo and CarbMeNot's AI logs the carbs, protein, and fat automatically.
Frequently asked questions
- How many carbs are in mcdonald's medium fries?
- McDonald's Medium Fries (1 medium fries, 111g) has 43g of total carbs and 39g of net carbs. Per 100 grams: 38.7g total, 35.1g net.
- How many net carbs are in mcdonald's medium fries?
- McDonald's Medium Fries has 39g of net carbs per 1 medium fries (111g) — 43g total carbs minus 4g fiber.
- Is mcdonald's medium fries keto-friendly?
- McDonald's Medium Fries is generally not keto-friendly. 1 medium fries (111g) is 39g net carbs (43g total carbs − 4g fiber); per 100g that is 35.1g 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 fries?
- McDonald's Medium Fries (1 medium fries, 111g) has 320 calories; that is 288 calories per 100 grams.
Similar foods
CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.