Calories in peanuts

Dry-roasted, without salt. 587 kcal (2,456 kJ) per 100 g. Choose a portion below and every figure on the page updates.

Peanuts are botanically legumes but are eaten like nuts. Dry-roasted without salt they have 587 kcal (2456 kJ) per 100 g, about three-quarters of it from fat, mostly monounsaturated. They are one of the highest-protein nuts, with 24.4 g per 100 g, and provide 8.4 g of fibre plus plenty of niacin, folate and vitamin E.

Where the energy comes from

Share of total energy contributed by each macronutrient, using the standard 4/4/9 kcal per gram factors:

Things worth knowing

• One ounce (28 g, about 28 peanuts) has about 166 kcal (696 kJ) and 6.9 g of protein. Each peanut is roughly 6 kcal.
• Preparation shifts calories only slightly: raw peanuts have about 567 kcal per 100 g, oil-roasted about 599, and smooth unsalted peanut butter about 598.
• Salt is the bigger difference between packets. Dry-roasted salted peanuts have about 410 mg of sodium per 100 g, compared with 6 mg in this unsalted version.
• An ounce supplies about 4 mg of niacin, around a quarter of the Daily Value, plus about 27 µg of folate and 1.4 mg of vitamin E.

Converting these figures

One 1 oz (about 28 peanuts) of peanuts is 166 kcal, which is 696 kJ. To convert any other figure, divide kilojoules by 4.184 for calories, or use the converter on the home page.

It takes 41 g of peanuts to reach 1,000 kJ (239 kcal). See how that compares with other foods on the 1000 kJ to calories page.