A medium plain baked sweet potato has about 103 calories, 24g carbohydrate and 4g fiber. The USDA entry for baked sweet potato flesh is about 90 calories per 100g. Oil, butter and fillings are additional.
Baked sweet potato calories by portion
| Plain portion | Calories | How to use it |
|---|---|---|
| 100g cooked flesh | 90 kcal | Best when you weighed the edible portion |
| 1 reference medium | 103 kcal | Useful estimate for a modest whole potato |
| 1 reference large | 162 kcal | Useful only if your potato is similarly sized |
| 1 cup baked flesh | about 180 kcal | Cup volume varies with chopping or mashing |
These are reference servings from food-composition data, not interchangeable portions. A medium potato in one store can weigh as much as a “large” in another. Weighing the cooked edible portion gives a more dependable answer than selecting a size label.
Carbs, fiber and other nutrients
The reference medium serving has about 23.6g carbohydrate, 3.8g fiber, 2.3g protein and very little fat. Orange-fleshed sweet potatoes also contain beta-carotene, which the body can convert to vitamin A. Their bright color does not mean they are calorie-free, and their natural sugar does not make them a dessert by default.
Is sweet potato lower in calories than white potato?
By equal cooked weight, the USDA entries are close: about 90 calories per 100g for baked sweet potato flesh and 94 for baked white potato with skin. A comparison of one “medium” of each is less useful because the reference weights differ. Choose the one you enjoy, then count the portion and additions. Our baked potato guide covers white potatoes and toppings in detail.
What baking and toppings change
Baking without added fat does not require an oil entry. Brushing the skin with oil, roasting chunks in a coated tray, or adding butter after baking does. For example, one teaspoon of butter adds about 34 calories to a medium sweet potato, taking the combination from roughly 103 to 137 calories. A stuffed potato can be a full meal; log beans, cheese, sauce and other fillings as parts of that meal rather than using a “plain sweet potato” entry.
If you roast cut pieces, oil can cling unevenly across the tray. Record the total oil used and divide it across portions. A photo estimate can get you started, but the visible surface cannot reveal every tablespoon in the pan. The same rule applies to grilled or roasted chicken.
Frequently asked questions
How many calories are in 100g of baked sweet potato?
The USDA reference for baked sweet potato flesh is about 90 calories per 100g, before oil or toppings.
How many carbs are in a medium baked sweet potato?
A reference medium baked sweet potato has about 24g carbohydrate and about 4g fiber. A larger potato will contain more.
Does baking a sweet potato add calories?
Baking it plain does not add ingredients. Oil, butter, sugar, marshmallows and other toppings add calories and should be logged separately.
Keep the whole plate in view
Coach Ivy helps you log the sweet potato, protein and toppings together, with room to correct the serving estimate.
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