A typical serving of hazelnuts (1 oz (about 21 nuts), 28 g) has about 178 calories. Per 100 g: 628 kcal, 15 g protein, 16.7 g carbs, 60.8 g fat. The same 100 g carries 9.7 g of fiber and 4.3 g of sugar. Most of the energy comes from fat.
| Serving | Weight | Calories |
|---|---|---|
| 1 oz (about 21 nuts) | 28 g | 178 kcal |
| 10 nuts | 14 g | 88 kcal |
| 100 g | 100 g | 628 kcal |
The nut inside the chocolate spread; plain, an ounce is about 178 calories. On the energy-density scale, 628 kcal per 100 g puts hazelnuts at the very high end. Fiber is the standout at 9.7 g per 100 g, which slows a portion down more than the calorie count suggests.
A typical serving (1 oz (about 21 nuts), 28 g) has about 178 calories, and 100 g has 628 kcal. Calories scale with weight, so double the portion means double the number.
There are 15 g of protein in 100 g of hazelnuts, which works out to about 4.3 g per serving (1 oz). Treat it as an energy source rather than a protein source.
Yes, in the plain arithmetic sense: 60.8 g of fat per 100 g supplies about 87% 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 170581 (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 170581 (SR Legacy). Serving calories are computed from the per-100-g values.
