Last updated: June 17, 2026
Nutrition facts per 100 g
Calories in Cornflakes
Cornflakes has about 357 calories per 100 g, with 7.5 g protein, 0.4 g fat and 84 g carbs.
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Serving size calculator
Nutrition table
| Portion | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|
| 100 g | 357 kcal | 7.5 g | 0.4 g | 84 g |
| 1 cup (30 g) | 107 kcal | 2.3 g | 0.1 g | 25.2 g |
| 50 g | 179 kcal | 3.8 g | 0.2 g | 42 g |
| 200 g | 714 kcal | 15 g | 0.8 g | 168 g |
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Open FoodWarzGoogle Play sooniOS soonHow long to burn cornflakes calories?
A 30 g portion is about 107 calories, roughly 27 minutes of brisk walking for many adults.
What changes the calories?
Oil, sauces, sugar, toppings, cooking method and portion weight can change cornflakes calories quickly.
FAQ
How many calories are in cornflakes?
Cornflakes has about 357 calories per 100 g. A typical cup (30 g) has about 107 calories.
How much protein is in cornflakes?
Cornflakes has about 7.5 g protein per 100 g and about 2.3 g protein per cup.
Is cornflakes good for calorie tracking?
Yes, as long as you track portion size. The biggest source of error is usually weight, sauces, oil and mixed ingredients.
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Data sources
Reference values are compiled from USDA FoodData Central, Open Food Facts and curated food databases. Your actual portion may differ by recipe, brand and cooking method.
Nutrition data methodologyNutrition values are estimates for calorie tracking and may vary by recipe, brand, cooking method and portion size. Not medical advice.