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How Many Calories in a McDonald's French Fries?

✓ Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by Jordan Morley, Editorial Reviewer. Last reviewed: 27 October 2026.

Fact-checked against original USDA source data by Jordan Morley, Editorial Reviewer. Not a registered dietitian — nutrition figures are sourced directly from USDA FoodData Central, not independently assessed medical advice.

378
calories per 1 medium serving
323 calories per 100g

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🍳 Air Fryer
4.0gProtein
49.8gCarbs
18.1gFat
4.6gFibre
grams
378kcal
4.0gprotein
49.8gcarbs
18.1gfat
4.6gfibre

A McDonald's French Fries contains 378 calories per 1 medium serving (117g), with 4.0g protein, 49.8g carbs and 18.1g fat. Track it precisely with a digital kitchen scale.

McDonald's French Fries Nutrition Facts

NutrientPer serving (117g)Per 100g
Calories378 kcal323 kcal
Protein4.0g3.4g
Carbohydrates49.8g42.6g
of which Sugars0.2g0.2g
Fat18.1g15.5g
of which Saturates2.7g2.3g
Fibre4.6g3.9g
Sodium221mg189.0mg
Potassium697mg596.0mg
Calcium22mg19.0mg
Iron0.9mg0.8mg
Vitamin C6.6mg5.6mg
Vitamin A0µg0.0µg
Selenium0µg0.4µg
Riboflavin (B2)0.0mg0.0mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

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Good to know

Customisations (extra cheese, sauce, no bun) change the numbers meaningfully — the figures here are for the standard menu item as sold.

Frequently Asked Questions

How many calories in a McDonald's French Fries?

A McDonald's French Fries contains 378 calories per 1 medium serving.

Is a McDonald's French Fries unhealthy?

A McDonald's French Fries has 378 calories and 18.1g of fat per serving — fine occasionally, best in moderation.

Similar items by calorie count

Other fast food items closest to mcdonald's french fries by calories per 100g:

ItemCaloriesProteinCarbsFat
McDonald's French Fries (this page)323 kcal3.4g42.6g15.5g
McDonald's Baked Apple Pie323 kcal3.1g43.6g15.7g
Pizza Hut 14″ Sausage Pizza, Thin 'N Crispy Crust323 kcal13.9g28.7g16.9g
Wendy's Chicken Nuggets326 kcal16.5g14.3g22.6g
McDonald's Newman'S Own Creamy Caesar Dressing319 kcal3.6g6.8g31.5g
Domino's 14″ Sausage Pizza, Crunchy Thin Crust319 kcal12.8g25.3g18.5g
Domino's 14″ Pepperoni Pizza, Crunchy Thin Crust328 kcal13.9g25.4g19.1g

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Last updated:

Figures from the USDA FoodData Central Branded Foods dataset (CC0 1.0).