How many calories are in a sweet potato?

A medium baked sweet potato of about 150 g has around 135 kcal.

Is sweet potato good for weight loss?

Yes. It is filling, high in fibre and moderate in calories when baked or roasted with only a little oil.

Calories in a sweet potato

A medium baked sweet potato has about 135 kcal. Figures are for flesh and skin, without butter or oil.

By the Calori team · Updated 21 October 2026 · 3 min read

Sweet potato calories by portion

Portion	Calories	Protein	Carbs	Fat
Small sweet potato, baked (100 g)	90 kcal	2 g	17.4 g	0.2 g
Medium sweet potato, baked (150 g)	135 kcal	3 g	26.1 g	0.3 g
Large sweet potato, baked (200 g)	180 kcal	4 g	34.8 g	0.4 g

Sweet potato nutrition per 100 g

Energy	90 kcal (377 kJ)
Protein	2 g
Carbohydrate	17.4 g
of which sugars	6.5 g
Fat	0.2 g
Fibre	3.3 g

Typical values. Carbohydrate excludes fibre, as on UK food labels. Brands and varieties differ, so check the label where there is one.

Sweet potato vs white potato

Per 100 g, baked sweet potato and baked white potato have similar calories (about 90 kcal). Sweet potato has more vitamin A and a little more sugar; white potato has slightly more protein. Both are good choices when cooked without much fat.

Sweet potato fries

Oven-baked sweet potato wedges with a teaspoon of oil come to around 130 to 150 kcal per 100 g. Fried sweet potato fries from a restaurant are often 250 kcal or more per 100 g.

Log it without looking it up

Calori recognises foods like this from a photo and estimates the portion, so you can log a whole plate in one go. Set your daily target with our calorie calculator.

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Frequently asked questions

How many calories are in a sweet potato?: A medium baked sweet potato of about 150 g has around 135 kcal.
Is sweet potato good for weight loss?: Yes. It is filling, high in fibre and moderate in calories when baked or roasted with only a little oil.