Calories in Onions, spring or scallions (includes tops and bulb), raw
Generic food Raw Vegetables
Onions, spring or scallions (includes tops and bulb), raw contains 32 kcal per 100 g. A typical serving of 1 medium, 4-1/8" long (15 g) provides about 5 kcal.
Roughly 76% of its calories come from carbohydrates, with 19% from protein and 4% from fat (estimated with general energy factors).
That is close to the median for vegetables and vegetable products on FoodFactly (35 kcal per 100 g).
100 g provides 173% of the Daily Value for Vitamin K, 21% of the Daily Value for Vitamin C and 16% of the Daily Value for Folate (B9).
These values are for the raw food. Cooking changes the water content and some nutrients, so cooked versions are listed separately below.
The data comes from USDA FoodData Central: SR Legacy.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories C | 32 kcal | |
| Total fat ? | 0.19 g | 0.2% |
| Saturated fat ? | 0.032 g | 0.2% |
| Trans fat Z | 0 g | |
| Cholesterol Z | 0 mg | 0% |
| Sodium ? | 16 mg | 0.7% |
| Total carbohydrates C | 7.3 g | 3% |
| Dietary fiber ? | 2.6 g | 9% |
| Total sugars I | 2.3 g | |
| Protein ? | 1.8 g | 4% |
| Vitamin A C | 50 µg | 6% |
| Vitamin C ? | 18.8 mg | 21% |
| Vitamin D Z | 0 µg | 0% |
| Vitamin E I | 0.55 mg | 4% |
| Vitamin K C | 207 µg | 173% |
| Thiamin (B1) ? | 0.055 mg | 5% |
| Riboflavin (B2) ? | 0.08 mg | 6% |
| Niacin (B3) ? | 0.53 mg | 3% |
| Pantothenic acid (B5) ? | 0.075 mg | 2% |
| Vitamin B6 ? | 0.061 mg | 4% |
| Folate (B9) C | 64 µg | 16% |
| Vitamin B12 Z | 0 µg | 0% |
| Choline I | 5.7 mg | 1% |
| Calcium ? | 72 mg | 6% |
| Iron ? | 1.5 mg | 8% |
| Magnesium ? | 20 mg | 5% |
| Phosphorus ? | 37 mg | 3% |
| Potassium ? | 276 mg | 6% |
| Zinc ? | 0.39 mg | 4% |
| Copper ? | 0.083 mg | 9% |
| Manganese ? | 0.16 mg | 7% |
| Selenium I | 0.6 µg | 1% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 19%
- Carbohydrates 76%
- Fat 4%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein1.8 gbelow the median for vegetables and vegetable products (median 2 g)
- Fiber2.6 gabove the median for vegetables and vegetable products (median 2.2 g)
- Sugars2.3 gbelow the median for vegetables and vegetable products (median 2.3 g)
- Fat0.19 gbelow the median for vegetables and vegetable products (median 0.3 g)
- Saturated fat0.032 gbelow the median for vegetables and vegetable products (median 0.052 g)
- Sodium16 mgbelow the median for vegetables and vegetable products (median 36 mg)
- Protein per 100 kcal5.7 gprotein density, useful for comparing foods with different calorie levels
- Water89.8 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Fats and cholesterol (2)
| Monounsaturated fat ? | 0.027 g |
|---|---|
| Polyunsaturated fat ? | 0.074 g |
Amino acids (17)
| Tryptophan ? | 0.02 g |
|---|---|
| Threonine ? | 0.072 g |
| Isoleucine ? | 0.077 g |
| Leucine ? | 0.11 g |
| Lysine ? | 0.091 g |
| Methionine ? | 0.02 g |
| Phenylalanine ? | 0.059 g |
| Tyrosine ? | 0.053 g |
| Valine ? | 0.081 g |
| Arginine ? | 0.13 g |
| Histidine ? | 0.032 g |
| Alanine ? | 0.082 g |
| Aspartic acid ? | 0.17 g |
| Glutamic acid ? | 0.38 g |
| Glycine ? | 0.091 g |
| Proline ? | 0.12 g |
| Serine ? | 0.082 g |
Individual fatty acids (19)
| EPA (omega-3, 20:5 n-3) ? | 0 g |
|---|---|
| DHA (omega-3, 22:6 n-3) ? | 0 g |
| Linoleic acid (omega-6, 18:2) ? | 0.07 g |
| SFA 4:0 ? | 0 g |
| SFA 6:0 ? | 0 g |
| SFA 8:0 ? | 0 g |
| SFA 10:0 ? | 0 g |
| SFA 12:0 ? | 0 g |
| SFA 14:0 ? | 0.001 g |
| SFA 16:0 ? | 0.028 g |
| SFA 18:0 ? | 0.003 g |
| MUFA 18:1 ? | 0.027 g |
| PUFA 18:3 ? | 0.004 g |
| PUFA 20:4 ? | 0 g |
| MUFA 16:1 ? | 0 g |
| PUFA 18:4 ? | 0 g |
| MUFA 20:1 ? | 0 g |
| MUFA 22:1 ? | 0 g |
| PUFA 22:5 n-3 (DPA) ? | 0 g |
Carotenoids (7)
| Beta-carotene I | 598 µg |
|---|---|
| Lycopene I | 0 µg |
| Lutein + zeaxanthin I | 1,137 µg |
| Retinol Z | 0 µg |
| Carotene, alpha I | 0 µg |
| Vitamin D (D2 + D3), International Units Z | 0 IU |
| Cryptoxanthin, beta I | 0 µg |
Other components (11)
| Water ? | 89.8 g |
|---|---|
| Alcohol ? | 0 g |
| Caffeine Z | 0 mg |
| Ash ? | 0.81 g |
| Theobromine Z | 0 mg |
| Energy C | 135 kJ |
| Vitamin A, IU C | 997 IU |
| Folic acid Z | 0 µg |
| Folate, food ? | 64 µg |
| Vitamin E, added Z | 0 mg |
| Vitamin B-12, added Z | 0 µg |
Other forms of Onions
Raw, cooked, dried and processed versions are separate records with their own measured values.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Onion, raw Raw | 40 | 1.1 g | 9.3 g | 0.1 g |
| Onions, cooked, boiled, drained, without salt Cooked | 44 | 1.4 g | 10.2 g | 0.19 g |
| Onions, dehydrated flakes Dried or dry | 349 | 9 g | 83.3 g | 0.46 g |
| Onions, canned, solids and liquids Canned | 19 | 0.85 g | 4 g | 0.09 g |
| Onions, yellow, sauteed Cooked | 123 | 0.95 g | 7.9 g | 10.8 g |
| Onions, young green, tops only | 27 | 0.97 g | 5.7 g | 0.47 g |
| Onions, welsh, raw Raw | 34 | 1.9 g | 6.5 g | 0.4 g |
| Onions, sweet, raw Raw | 32 | 0.8 g | 7.6 g | 0.08 g |
| Onions, cooked, boiled, drained, with salt Cooked | 42 | 1.4 g | 9.6 g | 0.19 g |
| Onions, frozen, chopped, cooked, boiled, drained, with salt Cooked | 26 | 0.77 g | 6 g | 0.1 g |
| Onions, frozen, chopped, unprepared Frozen | 29 | 0.79 g | 6.8 g | 0.1 g |
| Onions, frozen, chopped, cooked, boiled, drained, without salt Cooked | 28 | 0.77 g | 6.6 g | 0.1 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Foods with a similar nutritional profile
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Green beans, raw Raw | 31 | 1.8 g | 7 g | 0.22 g |
| Broccoli, raw Raw | 34 | 2.8 g | 6.6 g | 0.37 g |
| Cabbage, raw Raw | 25 | 1.3 g | 5.8 g | 0.1 g |
| Cauliflower, raw Raw | 25 | 1.9 g | 5 g | 0.28 g |
| Eggplant, raw Raw | 25 | 0.98 g | 5.9 g | 0.18 g |
| Asparagus, raw Raw | 20 | 2.2 g | 3.9 g | 0.12 g |
| Green bell pepper, raw Raw | 20 | 0.86 g | 4.6 g | 0.17 g |
| Red bell pepper, raw Raw | 26 | 0.99 g | 6 g | 0.3 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in raw onions?
100 g of raw onions has 32 kcal. 1 medium, 4-1/8" long (15 g): about 5 kcal. 1 small, 3" long (5 g): about 2 kcal. 1 tbsp chopped (6 g): about 2 kcal.
How much protein is in raw onions?
Raw onions contains 1.8 g of protein per 100 g (4% of the 50 g Daily Value), or 0.27 g in 1 medium, 4-1/8" long (15 g). About 19% of its calories come from protein. Compared with other vegetables and vegetable products, that is below the median (median 2 g).
How many carbs are in raw onions?
Raw onions has 7.3 g of total carbohydrates per 100 g, including 2.6 g of fiber and 2.3 g of sugars.
How much fat is in raw onions?
Raw onions contains 0.19 g of fat per 100 g, of which 0.032 g is saturated (0.2% of the Daily Value).
What vitamins and minerals does raw onions contain?
Per 100 g, the most notable amounts relative to the Daily Value are Vitamin K (173% DV), Vitamin C (21% DV) and Folate (B9) (16% DV). The full list is in the vitamins and minerals table above.
How much sodium is in raw onions?
100 g contains 16 mg of sodium, 0.7% of the 2,300 mg Daily Value.
Does onions have the same nutrition raw and cooked?
No. Per 100 g, onions, spring or scallions (includes tops and bulb), raw has 32 kcal, while onions, cooked, boiled, drained, without salt has 44 kcal. Cooking changes the water content, so always use the record that matches how you weigh the food.
Where does this nutrition data come from?
From USDA FoodData Central: SR Legacy, record dated April 1, 2019. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- USDA FoodData Central: SR Legacy, record 170005. License: CC0 1.0 (U.S. public domain). Source record dated April 1, 2019. Imported November 6, 2026.
Last updated: . Data quality score: 100/100 (how it is calculated).
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.