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Calories & Macros in Corn Flakes

Corn Flakes has 365 kcal per 100 g. 1 cup (30 g) has 110 kcal, 1.9 g of protein, 23.9 g of carbs and 0.5 g of fat.

Calories
365kcal
per 100 g
Protein
per 100 g
Carbs
79.5g
per 100 g
Fat
1.6g
per 100 g
Calories in Corn Flakes from protein, carbs and fat
Calories in Corn Flakes from protein, carbs and fat: Protein 7%, Carbs 89%, Fat 4%
  • Protein 7% · 6.4 g
  • Carbs 89% · 79.5 g
  • Fat 4% · 1.6 g

Calories in any amount of Corn Flakes

Weigh your portion and type it in, in grams or ounces; it starts at 1 cup (30 g). Every value scales from the USDA figures per 100 g, so 250 g has two and a half times the calories of 100 g.

Calories
Protein
1.9g
Carbs
23.9g
Fat
0.5g
Corn Flakes calories and macros by weight
AmountCaloriesProteinCarbsFat
1 oz (28.3 g)103 kcal1.8 g22.5 g0.5 g
50 g183 kcal3.2 g39.8 g0.8 g
100 g365 kcal6.4 g79.5 g1.6 g
150 g548 kcal9.6 g119.3 g2.4 g
200 g730 kcal12.8 g159 g3.2 g
250 g913 kcal16 g198.8 g4 g
300 g1,095 kcal19.2 g238.6 g4.8 g
500 g1,825 kcal32 g397.6 g8 g
1 lb (454 g)1,656 kcal29 g360.7 g7.3 g
Corn Flakes calories and macros per portion (USDA household measures)
AmountCaloriesProteinCarbsFat
1 cup: 30 g110 kcal1.9 g23.9 g0.5 g
1 prepackaged single serving: 30 g110 kcal1.9 g23.9 g0.5 g

Corn Flakes nutrition facts per 100 g

Nutrients in 100 g of Corn Flakes
NutrientPer 100 g% Daily Value
Calories365 kcal–
Protein6.4 g13%
Total fat1.6 g2%
Saturated fat0.2 g1%
Monounsaturated fat0.35 g–
Polyunsaturated fat0.75 g–
Cholesterol0 mg0%
Total carbohydrate79.5 g29%
Dietary fiber3.5 g13%
Total sugars9.44 g–
Sodium703 mg31%
Potassium128 mg3%
Calcium4 mg<1%
Iron28 mg156%
Magnesium29 mg7%
Phosphorus89 mg7%
Zinc0.6 mg5%
Vitamin A (RAE)10 µg1%
Vitamin C0 mg0%
Vitamin D5 µg25%
Vitamin E0.11 mg1%
Vitamin K0 µg0%
Vitamin B61.44 mg85%
Vitamin B121.8 µg75%
Folate (DFE)537 µg134%
Thiamin (B1)1.03 mg86%
Riboflavin (B2)1.02 mg79%
Niacin (B3)12.9 mg81%
Caffeine0 mg–
Alcohol0 g–
Water10.1 g–

% Daily Value is how much 100 g contributes to the FDA Daily Values for adults and children 4 years and older, the figures on US nutrition labels; a dash means there is no Daily Value for that nutrient. "Not reported" means USDA has no measurement for this food, not that it contains none.

How Corn Flakes fits common diet targets

Net carbs
76g
per 100 g
Protein per 100 kcal
Energy density
3.65kcal/g
medium
  • Net carbs are total carbohydrate minus fiber: 79.5 g − 3.5 g = 76 g per 100 g. Low-carb plans usually count these.
  • Protein per 100 kcal compares how much protein each food gives for the same calories: Corn Flakes gives 1.8 g.
  • Energy density is calories per gram. At 3.65 kcal/g, Corn Flakes is medium on the CDC's scale (very low below 0.6, low to 1.5, medium to 4, high above 4); lower-density foods give a larger portion for the same calories.

Logging Corn Flakes: what to know

These are plain corn flakes, so frosted and honey-coated cereals will differ. A cup is 30 g, and a bowl poured by eye can hold more than one cup, so weigh the cereal before the milk goes on. Sodium is 703 mg in every 100 g, and milk is a separate entry.

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Values are USDA averages for the food as described below; a single piece varies with variety, ripeness and preparation. This is general information, not medical advice. If you are pregnant, under 18 or managing a health condition, talk to a doctor or registered dietitian before changing how you eat.

USDA describes this food as “Cereal, corn flakes, plain” (FoodData Central FNDDS (Survey Foods) 2024-10-31). Want your own numbers? The macro calculator sets a daily target to compare against.

Source: USDA FoodData Central, FDC 2708453, retrieved . How we calculate.