Calories in Peanuts

Q: How many calories are in one serving of peanuts?

1 peanut (1 g) has about 6 kcal, and 100 g has 587 kcal.

Q: How much protein do peanuts have?

100 g of peanuts has 24.4 g of protein. The macro calculator works out how much protein you need a day.

Q: How much fiber do peanuts have?

100 g of peanuts has 8.4 g of fiber.

Q: How much sugar do peanuts have?

100 g of peanuts has 4.9 g of sugar.

Q: How many calories in raw and cooked peanuts?

It depends on how it is prepared. Per 100 g: roasted, unsalted 587 kcal, roasted, salted 587 kcal, boiled 318 kcal, raw 551 kcal. This page shows peanuts (roasted, unsalted).

Q: Are peanuts rich in vitamin B3?

Yes. 100 g of peanuts has 14.4 mg of vitamin B3, 90% of what an adult needs in a day.

Q: Are peanuts high in protein?

Moderately. 100 g of peanuts has 24.4 g of protein, 17% of the calories; a food counts as high in protein from 20%.

Q: Are peanuts high in saturated fat?

Yes. 100 g of peanuts has 7.7 g of saturated fat, above the 5 g at which food labels mark saturated fat as high.

Q: Will eating peanuts help me lose weight?

It can be part of a diet that loses weight: what counts is the total calories you eat in a day, not any single food. 100 g of peanuts has 587 kcal. The calorie calculator works out how many you need.

100 g of peanuts has 587 kcal, and 1 peanut (1 g) has about 6 kcal.

587 kcalper 100 g

6 kcal in 1 peanut (1 g)

Very high density · 5.9 kcal per g

Protein 24.4g 15% of the calories
Carbs 21.3g 14% of the calories
Fat 49.7g 71% of the calories
Fiber 8.4g

Per 100 g. Figures from USDA FoodData Central. Averages across measured samples; a few percent either way is normal. Updated 2026-10-04.

100 g is about 144 minutes of walking, or 51 minutes of running, for a 70 kg body - context, not a debt to work off.

Peanuts nutrition facts

A dash means nobody measured it - not that there is none of it.

Per serving: 1 peanut (1 g)
Nutrient	Per 100 g	Per serving
Energy	587kcal	6kcal
Fat	49.7g	0.5g
Saturated Fat	7.7g	0.077g
Unsaturated Fat	41.9g	0.42g
Carbs	21.3g	0.21g
Sugars	4.9g	0.049g
Fiber	8.4g	0.084g
Protein	24.4g	0.24g
Salt	0.01g	0g
Water	1.8g	0.018g

Alcohol	0g	0g
Caffeine	0mg	0mg

Monounsaturated	26.2g	0.26g
Polyunsaturated	9.8g	0.098g
Omega-3	0.026g	0g
ALA	0.026g	0g
DHA	0g	0g
EPA	0g	0g
Omega-6	9.7g	0.097g
AA	0.016g	0g
LA	9.7g	0.097g
Cholesterol	0mg	0mg

Vitamin B1 (Thiamine)	0.15mg	0.002mg
Vitamin B2 (Riboflavin)	0.2mg	0.002mg
Vitamin B3 (Niacin)	14.4mg	0.14mg
Vitamin B6 (Pyridoxine)	0.47mg	0.005mg
Vitamin B12 (Cobalamin)	0µg	0µg
Folate (Vitamin B9)	97µg	0.97µg
Vitamin A	0µg	0µg
Vitamin C	0mg	0mg
Vitamin D	0IU	0IU
Vitamin E	4.9mg	0.049mg
Vitamin K	0µg	0µg
Choline	64.6mg	0.65mg

Calcium	58mg	0.58mg
Copper	0.43mg	0.004mg
Iron	1.6mg	0.016mg
Magnesium	178mg	1.8mg
Phosphorus	363mg	3.6mg
Potassium	634mg	6.3mg
Selenium	9.3µg	0.093µg
Zinc	2.8mg	0.028mg

Beta-carotene	0µg	0µg
Lycopene	0µg	0µg
Lutein + zeaxanthin	0µg	0µg
Flavonoids	0.7mg	0.007mg
Flavan-3-ols	0.66mg	0.007mg
Isoflavones	0.04mg	0mg

Cystine	0.3g	0.003g
Histidine	0.6g	0.006g
Isoleucine	0.83g	0.008g
Leucine	1.5g	0.015g
Lysine	0.85g	0.009g
Methionine	0.29g	0.003g
Phenylalanine	1.2g	0.012g
Threonine	0.81g	0.008g
Tryptophan	0.23g	0.002g
Tyrosine	0.96g	0.01g
Valine	0.99g	0.01g

Read it as an averageIt is what a laboratory measured, averaged over samples - variety, ripeness and cut all move it, and a few percent either way is normal.

What stands out in peanuts

1 peanut (1 g) is 6 kcal, about <1% of a 2,000 kcal day.

High in fat49.7 g per 100 g (71% of the daily reference)
High in saturated fat7.7 g per 100 g (39% of the daily reference)
High in vitamin B314.4 mg per 100 g (90% of the daily reference)
High in phosphorus363 mg per 100 g (52% of the daily reference)
High in fiber8.4 g per 100 g (34% of the daily reference)

Claims follow the EU nutrition claims rules and the "high" warnings the UK/EU front-of-pack labels; the 2,000 kcal day is the reference intake for an average adult.

Calories in different amounts of peanuts

1 g1 peanut	6 kcal
28 g1 oz	164 kcal
50 g	294 kcal
100 g	587 kcal
200 g	1,174 kcal

Any amount g 6 kcal

Foods with similar calories

Other published foods within reach of 587 kcal per 100 g, so the number has something to sit against.

Cashews 13 kcal less 574kcal / 100 g

Almonds 11 kcal more 598kcal / 100 g

Walnuts 92 kcal more 679kcal / 100 g

Peanut butter 11 kcal more 598kcal / 100 g

Coconut 233 kcal less 354kcal / 100 g

Pistachios 26 kcal less 561kcal / 100 g

Questions about peanuts