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Sweet potato

Calories in Sweet potato

100 g of sweet potato has 82 kcal, and 1 small sweet potato (80 g) has about 66 kcal.

82 kcalper 100 g

66 kcal in 1 small (80 g)

Low density · 0.82 kcal per g

  • Protein 1.6g 8% of the calories
  • Carbs 18g 88% of the calories
  • Fat 0.4g 4% of the calories
  • Fiber 3.1g

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 20 minutes of walking, or 7 minutes of running, for a 70 kg body - context, not a debt to work off.

Sweet potato nutrition facts

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

Per serving: 1 small (80 g)
Nutrient Per 100 g Per serving
Energy 82kcal 66kcal
Fat 0.39g 0.31g
Saturated Fat 0.02g 0.016g
Unsaturated Fat 0.37g 0.3g
Carbs 18g 14.4g
Sugars 6.3g 5g
Fiber 3.1g 2.5g
Protein 1.6g 1.3g
Salt 0.39g 0.31g
Water 78.4g 62.7g
Alcohol 0g 0g
Caffeine 0mg 0mg
Monounsaturated 0.001g 0.001g
Polyunsaturated 0.015g 0.012g
Omega-3 0.001g 0.001g
ALA 0.001g 0.001g
DHA 0g 0g
EPA 0g 0g
Omega-6 0.014g 0.011g
AA 0g 0g
LA 0.014g 0.011g
Cholesterol 0mg 0mg
Vitamin B1 (Thiamine) 0.042mg 0.034mg
Vitamin B2 (Riboflavin) 0.06mg 0.048mg
Vitamin B3 (Niacin) 0.43mg 0.34mg
Vitamin B6 (Pyridoxine) 0.12mg 0.093mg
Vitamin B12 (Cobalamin) 0µg 0µg
Folate (Vitamin B9) 10µg 8µg
Vitamin A 699µg 559µg
Vitamin C 13.1mg 10.5mg
Vitamin D 0IU 0IU
Vitamin E 0.27mg 0.22mg
Vitamin K 0.2µg 0.16µg
Choline 12.8mg 10.2mg
Calcium 23mg 18.4mg
Copper 0.19mg 0.16mg
Iron 0.42mg 0.34mg
Magnesium 20mg 16mg
Phosphorus 38mg 30.4mg
Potassium 504mg 403mg
Selenium 0µg 0µg
Zinc 0.35mg 0.28mg
Beta-carotene 8387µg 6710µg
Lycopene 0µg 0µg
Lutein + zeaxanthin 0µg 0µg
Flavonoids 0.08mg 0.064mg
Flavones 0.03mg 0.024mg
Flavonols 0.05mg 0.04mg
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.

Foods with similar calories

Other published foods within reach of 82 kcal per 100 g, so the number has something to sit against.

Potato Potato 11 kcal more 93kcal / 100 g Peas Peas 21 kcal less 61kcal / 100 g Lentils Lentils 33 kcal more 115kcal / 100 g Kidney beans Kidney beans 44 kcal more 126kcal / 100 g Corn Corn 4 kcal more 86kcal / 100 g Black beans Black beans 49 kcal more 131kcal / 100 g

More in vegetables

Questions about sweet potato

1 small sweet potato (80 g) has about 66 kcal, and 100 g has 82 kcal.

1 small sweet potato (80 g) has 2.5 g of fiber, and 100 g has 3.1 g.

1 small sweet potato (80 g) has 5 g of sugar, and 100 g has 6.3 g.

It depends on how it is prepared. Per 100 g: baked, no added fat 82 kcal, canned, fat added 124 kcal, canned, no added fat 91 kcal, boiled, no added fat 82 kcal, cooked, fat added 115 kcal. This page shows sweet potato (baked, no added fat).

Yes. 100 g of sweet potato has 699 µg of vitamin A, 87% of what an adult needs in a day.

Moderately. 100 g of sweet potato has 3.1 g of fiber; a food counts as high in fiber from 6 g.

Yes. 100 g of sweet potato has 8387 µg of beta-carotene.

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. 1 small sweet potato (80 g) has about 66 kcal. The calorie calculator works out how many you need.

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