A typical serving of brie (1 cup, melted, 240 g) has about 802 calories. Per 100 g: 334 kcal, 20.8 g protein, 0.5 g carbs, 27.7 g fat. The same 100 g carries 0.5 g of sugar. Most of the energy comes from fat.
| Serving | Weight | Calories |
|---|---|---|
| 1 cup, melted | 240 g | 802 kcal |
| 1 oz | 28 g | 95 kcal |
| 1 cubic inch | 17 g | 57 kcal |
| 1 cup, sliced | 144 g | 481 kcal |
| 100 g | 100 g | 334 kcal |
Softer texture, same arithmetic: brie sits near 95 calories per ounce. On the energy-density scale, 334 kcal per 100 g puts brie at the high end. Protein density is strong: about 6.2 g of protein per 100 calories.

A typical serving (1 cup, melted, 240 g) has about 802 calories, and 100 g has 334 kcal. Calories scale with weight, so double the portion means double the number.
There are 20.8 g of protein in 100 g of brie, which works out to about 49.9 g per serving (1 cup). It contributes meaningful protein, though most of the calories come from elsewhere.
Yes, in the plain arithmetic sense: 27.7 g of fat per 100 g supplies about 75% of the calories. Whether that fits your day depends on your totals, not on the food alone.
Every value on this page comes from USDA FoodData Central, entry 172177 (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 172177 (SR Legacy). Serving calories are computed from the per-100-g values.