Calories in Peanuts (roasted)

164kcal per 1 oz (28 g)

587 kcal per 100 g · about 8% of a 2,000-kcal day

Peanuts are technically legumes but eat like nuts, with 24 g of protein per 100 g. A one-ounce handful is about 164 calories — the open jar is the hazard.

Peanuts (roasted) nutrition facts

NutrientPer 100 gPer 1 oz
Calories587 kcal164 kcal
Protein24.4 g6.8 g
Carbs21.5 g6 g
Fat49.7 g13.9 g
Fiber8 g2.2 g
Sugar4.2 g1.2 g

Where the calories come from

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Values based on USDA FoodData Central reference entries. Actual nutrition varies with variety, preparation, and portion. © 2026 NibbleCal.