How many calories are in Hazelnuts?

A 100 g serving of Hazelnuts has 628 kcal. The calories in your portion depend on its weight and how it is prepared.

How much protein is in Hazelnuts?

Per 100 g there are 14.9 g of protein — about 30% of the Daily Value (50 g).

How much fat and carbs are in Hazelnuts?

Per 100 g there are 53 g of fat and 23 g of carbohydrate, including 9.8 g of fiber.

What nutrients is Hazelnuts high in?

Per 100 g it notably contributes to your Daily Value for: Magnesium (56% DV), Dietary Fiber (35% DV), Calcium (34% DV).

Prepared Foods

Hazelnuts

USDA reference values for hazelnuts (per 100 g).

628kcalCalories

14.9gProtein

53gFat

23gCarbs

Protein, fat and carb balance

Share of calories from each macronutrient (per 100 g).

Protein 9.8%
Fat 78.3%
Carbs 11.9%

What this food is high in

56% Magnesium 235 mg / 100 g 35% Dietary Fiber 9.8 g / 100 g 34% Calcium 441 mg / 100 g 30% Protein 14.9 g / 100 g

Shown as percent of the Daily Value per 100 g.

Full nutrition facts (per 100 g)

Nutrient	Per 100 g	% DV*
Macronutrients
Protein	14.9 g	30%
Total Fat	53 g	68%
Saturated Fat	—
Carbohydrate	23 g	8%
Dietary Fiber	9.8 g	35%
Total Sugars	—
Minerals
Sodium	2 mg	<1%
Potassium	738 mg	16%
Calcium	441 mg	34%
Iron	3.1 mg	17%
Magnesium	235 mg	56%
Vitamins
Vitamin C	—
Vitamin A	—
Vitamin D	—
Other
Cholesterol	—

* Percent of the Daily Value (Daily Value, based on a 2,000 kcal diet).

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Frequently asked questions

How many calories are in Hazelnuts?: A 100 g serving of Hazelnuts has 628 kcal. The calories in your portion depend on its weight and how it is prepared.
How much protein is in Hazelnuts?: Per 100 g there are 14.9 g of protein — about 30% of the Daily Value (50 g).
How much fat and carbs are in Hazelnuts?: Per 100 g there are 53 g of fat and 23 g of carbohydrate, including 9.8 g of fiber.
What nutrients is Hazelnuts high in?: Per 100 g it notably contributes to your Daily Value for: Magnesium (56% DV), Dietary Fiber (35% DV), Calcium (34% DV).

Similar foods and comparisons

Acorn Stew (Apache) 95 kcal 6.8 g protein Agave, Cooked (Southwest) 135 kcal 1 g protein Agave, Dried (Southwest) 341 kcal 1.7 g protein Agave, Raw (Southwest) 68 kcal 0.5 g protein Agutuk 353 kcal 3.4 g protein Agutuk 258 kcal 21.7 g protein

Compare Hazelnuts with: Acorn Stew (Apache) Agave, Cooked (Southwest) Agave, Dried (Southwest) Agave, Raw (Southwest)

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.