A typical serving of corn flakes (1 cup, 28 g) has about 108 calories. Per 100 g: 384 kcal, 5.9 g protein, 88 g carbs, 0.9 g fat. The same 100 g carries 2.7 g of fiber and 7.8 g of sugar. Most of the energy comes from carbohydrate.
| Serving | Weight | Calories |
|---|---|---|
| 1 cup | 28 g | 108 kcal |
| 100 g | 100 g | 384 kcal |
Light in the bowl but easy to pour double: a cup is about 108 calories dry. On the energy-density scale, 384 kcal per 100 g puts corn flakes at the high end.
A typical serving (1 cup, 28 g) has about 108 calories, and 100 g has 384 kcal. Calories scale with weight, so double the portion means double the number.
There are 5.9 g of protein in 100 g of corn flakes, which works out to about 1.7 g per serving (1 cup). Treat it as an energy source rather than a protein source.
There are 88 g of carbohydrate per 100 g of corn flakes, or about 25 g in 1 cup (28 g).
Every value on this page comes from USDA FoodData Central, entry 174648 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 174648 (SR Legacy). Serving calories are computed from the per-100-g values.
