Carbs in Sweet Potato

Sweet Potato (per 100 g) contains 20.1g total carbs, 17.1g net carbs, 0.1g fat, 1.6g protein, and 86 calories.

Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

Sweet Potato
17.1g
Net carbs
20.1g
Total carbs
3g
Fiber
1.6g
Protein
0.1g
Fat
86
Calories

Values per 100 g.

Carbs by serving size

ServingNet carbsTotal carbsCalories
1 medium22.2g26.1g112
100 g (3.5 oz)17.1g20.1g86
1 oz (28 g)4.8g5.6g24

Nutrition facts

NutrientAmount (per 100 g)
Calories86
Total carbs20.1g
Net carbs17.1g
Fiber3g
Sugar4.2g
Sugar alcohols0g
Protein1.6g
Fat0.1g
Sodium55mg
Potassium337mg

Source: USDA FoodData Central (Foundation). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in sweet potato?
Sweet Potato has 20.1g of total carbs and 17.1g of net carbs per 100 grams.
How many net carbs are in sweet potato?
Sweet Potato has 17.1g of net carbs per 100 grams (total carbs 20.1g minus 3g fiber).
Is sweet potato keto-friendly?
Sweet Potato has 17.1g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
How many calories are in sweet potato?
Sweet Potato has 86 calories per 100 grams.
How many carbs are in 1 medium of sweet potato?
1 medium of sweet potato (130g) has about 22.2g net carbs, 26.1g total carbs, and 112 calories.

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