How many calories are in sweet potato?
A medium baked sweet potato (4 oz, 114 g) has 103 calories. A small sweet potato has 54 calories and a large one 162 calories. Per 3.5 oz (100 g): 90 calories.
Numbers are for the USDA entry Sweet potato, cooked, baked in skin, flesh, without salt. Other forms are compared below.
Calories in sweet potato by size and measure
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup | 7.1 oz (200 g) | 180 calories | 4 g | 41.4 g | 0.3 g |
| 1/2 cup | 3.5 oz (100 g) | 90 calories | 2 g | 20.7 g | 0.15 g |
| 1 large | 6.3 oz (180 g) | 162 calories | 3.6 g | 37.3 g | 0.27 g |
| 1 medium | 4 oz (114 g) | 103 calories | 2.3 g | 23.6 g | 0.17 g |
| 1 small | 2.1 oz (60 g) | 54 calories | 1.2 g | 12.4 g | 0.09 g |
| 1 oz | 28 g | 26 calories | 0.57 g | 5.9 g | 0.04 g |
| 100 g | 3.5 oz | 90 calories | 2 g | 20.7 g | 0.15 g |
Weights are the household measures USDA lists for this exact food.
Where the calories come from
A medium baked sweet potato (4 oz, 114 g) has:
- Protein: 2.3 g per serving, about 9% of calories
- Carbs: 23.6 g per serving, about 90% of calories
- Fat: 0.17 g per serving, about 1% of calories
Shares use 4 calories per gram of protein and carbs and 9 per gram of fat. USDA calculates total calories with factors specific to each food, so shares are approximate.
Raw, cooked and other forms
Per 100 g, the 9 USDA entries below range from 76 calories in sweet potato, cooked, boiled, without skin to 164 calories in sweet potato, cooked, candied, home-prepared.
| USDA entry | Per 100 g | Per serving | Water |
|---|---|---|---|
| Sweet potato, cooked, baked in skin, flesh | 90 calories | 103 calories per 1 medium (114 g) | 75.8% |
| Sweet potato, raw, unprepared | 86 calories | 112 calories per 1 sweetpotato (5" long) (130 g) | 77.3% |
| Sweet potato, cooked, boiled, without skin | 76 calories | 115 calories per 1 medium (151 g) | 80.1% |
| Sweet potato, frozen, cooked, baked, with salt | 100 calories | — | 73.7% |
| Sweet potato, canned, mashed | 101 calories | — | 73.9% |
| Sweet potatoes, orange flesh, without skin, raw | 77 calories | — | 79.5% |
| Sweet potato, canned, vacuum pack | 91 calories | — | 76% |
| Sweet potato, cooked, candied, home-prepared | 164 calories | 172 calories per 1 piece (105 g) | 62.8% |
| Sweet potato, canned, syrup pack, solids and liquids | 89 calories | — | 77.4% |
Each row is a separate USDA entry with its own household measure. A dash means USDA lists no comparable measure for that entry.
How sweet potato compares with other vegetables
Among the 50 vegetables people look up most, sweet potato ranks 8th for calories per 3.5 oz (100 g) and 7th per typical serving.
| # | Food | Serving | Per serving | Per 100 g |
|---|---|---|---|---|
| 1 | Onion rings | 1 piece, 20.2 g | 58 calories | 288 calories |
| 2 | Garlic | 1 clove, 3 g | 4 calories | 143 calories |
| 3 | Potato salad | 1 cup, 250 g | 358 calories | 143 calories |
| … | ||||
| 6 | Yam | 1 cup (cubes), 150 g | 177 calories | 118 calories |
| 7 | Potatoes | 1 medium potato, 173 g | 161 calories | 93 calories |
| 8 | Sweet potato | 1 medium, 114 g | 103 calories | 90 calories |
| 9 | Corn | 1 ear (small), 73 g | 63 calories | 86 calories |
| 10 | Peas | 1 cup, 145 g | 117 calories | 81 calories |
| … | ||||
| 15 | Carrots | 1 cup, 120 g | 53 calories | 44 calories |
| … | ||||
| 44 | Tomatoes | 1 medium whole, 123 g | 22 calories | 18 calories |
The list is the 50 vegetables most asked about in US searches for protein, calories, carbs, sugar and fiber, each as one USDA entry with its usual serving. Rows in between are skipped (…).
Keep exploring
Sources
Nutrients and household measures: USDA FoodData Central, April 2026 release (accessed 2026-10-14)
- Sweet potato, cooked, baked in skin, flesh: Sweet potato, cooked, baked in skin, flesh, without salt, FDC ID 168483 (SR Legacy, published 2019-04-01) · full nutrition facts
- Sweet potato, raw, unprepared: Sweet potato, raw, unprepared (Includes foods for USDA's Food Distribution Program), FDC ID 168482 (SR Legacy, published 2019-04-01)
- Sweet potato, cooked, boiled, without skin: Sweet potato, cooked, boiled, without skin, FDC ID 168484 (SR Legacy, published 2019-04-01)
- Sweet potato, frozen, cooked, baked, with salt: Sweet potato, frozen, cooked, baked, with salt, FDC ID 170542 (SR Legacy, published 2019-04-01)
- Sweet potato, canned, mashed: Sweet potato, canned, mashed, FDC ID 169305 (SR Legacy, published 2019-04-01)
- Sweet potatoes, orange flesh, without skin, raw: Sweet potatoes, orange flesh, without skin, raw, FDC ID 2346404 (Foundation Foods, published 2022-10-28)
- Sweet potato, canned, vacuum pack: Sweet potato, canned, vacuum pack, FDC ID 168485 (SR Legacy, published 2019-04-01)
- Sweet potato, cooked, candied, home-prepared: Sweet potato, cooked, candied, home-prepared, FDC ID 170088 (SR Legacy, published 2019-04-01)
- Sweet potato, canned, syrup pack, solids and liquids: Sweet potato, canned, syrup pack, solids and liquids, FDC ID 170083 (SR Legacy, published 2019-04-01)
Comparison foods:
- Onion rings: Onion rings, breaded, par fried, frozen, prepared, heated in oven, FDC ID 324317
- Garlic: Garlic, raw, FDC ID 1104647
- Potato salad: Potato salad, home-prepared, FDC ID 169269
- Yam: Yam, raw, FDC ID 170071
- Potatoes: Potatoes, baked, flesh and skin, without salt, FDC ID 170093
- Corn: Corn, sweet, yellow, raw, FDC ID 169998
- Peas: Peas, green, raw, FDC ID 170419
- Carrots: Carrots, raw, FDC ID 2709660
- Tomatoes: Tomatoes, red, ripe, raw, year round average, FDC ID 170457
How we calculate: every amount is the USDA value per 3.5 oz (100 g) scaled to the gram weight USDA lists for that measure. 1 oz = 28.35 g and 1 lb = 453.6 g. A dash (—) means USDA reports no value. How we verify.