A typical serving of croissant (1 croissant, medium, 57 g) has about 231 calories. Per 100 g: 406 kcal, 8.2 g protein, 45.8 g carbs, 21 g fat. The same 100 g carries 2.6 g of fiber and 11.3 g of sugar. The energy comes from a mix of carbs, fat, and protein.
| Serving | Weight | Calories |
|---|---|---|
| 1 croissant, medium | 57 g | 231 kcal |
| 1 croissant, large | 67 g | 272 kcal |
| 1 croissant, small | 42 g | 171 kcal |
| 1 croissant, mini | 28 g | 114 kcal |
| 100 g | 100 g | 406 kcal |
Laminated butter is the whole recipe; one croissant rivals a buttered bagel. On the energy-density scale, 406 kcal per 100 g puts croissant at the very high end.
A typical serving (1 croissant, medium, 57 g) has about 231 calories, and 100 g has 406 kcal. Calories scale with weight, so double the portion means double the number.
There are 8.2 g of protein in 100 g of croissant, which works out to about 4.7 g per serving (1 croissant). Treat it as an energy source rather than a protein source.
Sugar comes to 11.3 g per 100 g, so 1 croissant (57 g) delivers roughly 6 g. That sugar is already counted inside the calorie figures on this page.
Every value on this page comes from USDA FoodData Central, entry 174987 (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 174987 (SR Legacy). Serving calories are computed from the per-100-g values.
