Calories in Croissants: Nutrition Facts & Serving Sizes
Per 1 croissant, medium (57g)
Per 100g
Source: USDA FoodData Central, SR Legacy, March 2026.
One medium croissant (57g) contains 144.8 calories with 4.2g of protein, 21.1g of carbs, and 5g of fat. Per 100g, a croissant provides 254 calories with 7.4g of protein, 37.1g of carbs, and 8.7g of fat. Saturated fat is 5g per 100g from the butter in the dough. Folate provides 88mcg per 100g (about 22% daily value). Vitamin A is 94mcg per 100g. Selenium is 19mcg per 100g. Sodium is notable at 274mg per 100g (156mg per croissant). A croissant is a laminated, butter-based pastry with a light, flaky texture from the layered dough. It is relatively moderate in fat for a pastry, but the refined carbs and moderate sodium make it more of an occasional treat than a daily breakfast for those managing weight.
Nutrition Highlights
Calories by Serving Size
| Serving | Cal | Protein | Carbs | Fat | Fiber |
|---|---|---|---|---|---|
| 1 croissant, medium (57g) | 144.8 | 4.2g | 21.1g | 5g | 1.4g |
| 1 oz (28g) | 72.1 | 2.1g | 10.5g | 2.5g | 0.7g |
| 100g | 254 | 7.4g | 37.1g | 8.7g | 2.5g |
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Full Nutrition Facts (per 100g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 254 | 13% |
| Protein | 7.4g | 15% |
| Total Fat | 8.7g | 11% |
| Saturated Fat | 5g | 25% |
| Total Carbohydrates | 37.1g | 13% |
| Dietary Fiber | 2.5g | 9% |
| Sugars | 0g | |
| Sodium | 274mg | 12% |
| Cholesterol | 31mg | 10% |
Vitamins & Minerals (per 100g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Saturated Fat | 5g | 2% |
| Cholesterol | 31mg | 10% |
| Calcium | 30mg | 2% |
| Iron | 1.1mg | 6% |
| Potassium | 90mg | 2% |
| Vitamin A | 94mcg | 10% |
| Vitamin C | 0.5mg | 1% |
| Vitamin B12 | 0.2mcg | 8% |
| Magnesium | 13mg | 3% |
| Phosphorus | 58mg | 5% |
| Zinc | 1mg | 9% |
| Selenium | 19mcg | 35% |
| Folate | 88mcg | 22% |
| Thiamin (B1) | 0.2mg | 17% |
| Riboflavin (B2) | 0.2mg | 15% |
| Niacin (B3) | 1.6mg | 10% |
% Daily Values based on a 2,000 calorie diet (FDA reference).
Health Benefits of Croissants
Croissants are a higher-end bakery pastry with modest nutritional value. The folate content at 88mcg per 100g (about 22% daily value) stands out as the most notable micronutrient, supporting DNA synthesis and cell division.
Vitamin A at 94mcg per 100g comes from the butter in the dough and contributes to immune function and skin health. Selenium at 19mcg per 100g supports antioxidant enzymes and thyroid function.
At 144.8 calories per croissant with 4.2g of protein, croissants are not a protein source or a filling choice for active people. The carb content at 21.1g per croissant is moderate, but the refined flour provides minimal fiber (1.4g per croissant) meaning blood sugar spikes quickly.
For anyone cutting weight, a croissant is not an efficient use of 145 calories since it provides little satiety. For those eating in a surplus or at maintenance, it is a fine occasional breakfast item. Pairing with eggs adds the protein needed to make it a more complete meal.
The saturated fat at 5g per 100g is worth noting for those monitoring cardiovascular markers, but a single croissant at 57g keeps absolute intake relatively low.
Dietary Considerations
Croissants are not keto-friendly at 37.1g carbs per 100g. Not ideal for weight loss as a standalone breakfast due to low protein (4.2g per croissant) and moderate calories (144.8 per croissant). Not vegan due to butter and eggs. Not gluten-free. The sodium at 274mg per 100g is moderate. A croissant is a satisfying occasional treat but not a nutrition staple.
Daily Intake (100g)
100g of croissant provides 13% of a 2,000-calorie diet.
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Frequently Asked Questions
How many calories in a croissant?
A medium croissant (57g) contains 144.8 calories. Per 100g, a croissant has 254 calories. A 1 oz portion (28g) has about 72 calories.
Is a croissant good for weight loss?
Croissants are not ideal for weight loss. At 144.8 calories per croissant with only 4.2g of protein, they provide limited satiety. High-protein breakfasts keep you full longer and are a better use of your morning calories.
Is a croissant high in fat?
A medium croissant (57g) has 5g of fat. Per 100g, croissants have 8.7g of fat including 5g of saturated fat. The fat comes from the butter layered into the dough. Despite the rich texture, a single croissant has a moderate fat content.
How much protein is in a croissant?
A medium croissant (57g) has 4.2g of protein. Per 100g, croissants provide 7.4g of protein. This is modest and not enough to drive meaningful muscle protein synthesis on its own.
Are croissants high in carbs?
A medium croissant contains 21.1g of carbs with 1.4g of fiber. Per 100g, that is 37.1g of carbs from refined flour. Blood sugar rises quickly with refined carbs and limited fiber, so croissants are best paired with protein to slow the glucose response.
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