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Calories in Onions, frozen, chopped, cooked, boiled, drained, with salt

Generic food Cooked Vegetables

Onions, frozen, chopped, cooked, boiled, drained, with salt contains 26 kcal per 100 g. A typical serving of 1 tbsp chopped (15 g) provides about 4 kcal.

Roughly 86% of its calories come from carbohydrates, with 11% from protein and 3% from fat (estimated with general energy factors).

That is less energy than the typical item in vegetables and vegetable products on FoodFactly, where the median is 35 kcal per 100 g across 866 foods.

These values are for the cooked food. Raw and other preparations have their own values, listed separately below.

The data comes from USDA FoodData Central: SR Legacy.

26kcal per 100 g
0.77 gprotein
6 gcarbohydrates
0.1 gfat
4kcal in 1 tbsp chopped (15 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories C 26 kcal
Total fat ? 0.1 g 0.1%
Saturated fat ? 0.016 g 0.1%
Trans fat Z 0 g
Cholesterol Z 0 mg 0%
Sodium ? 248 mg 11%
Total carbohydrates C 6 g 2%
Dietary fiber ? 1.7 g 6%
Total sugars I 2.9 g
Protein ? 0.77 g 2%
Vitamin A C 0 µg0%
Vitamin C ? 2.6 mg3%
Vitamin D Z 0 µg0%
Vitamin E I 0.01 mg0.1%
Vitamin K I 0.3 µg0.3%
Thiamin (B1) ? 0.023 mg2%
Riboflavin (B2) ? 0.025 mg2%
Niacin (B3) M 0.14 mg0.9%
Pantothenic acid (B5) M 0.099 mg2%
Vitamin B6 M 0.069 mg4%
Folate (B9) C 13 µg3%
Vitamin B12 Z 0 µg0%
Choline C 4.4 mg0.8%
Calcium ? 16 mg1%
Iron ? 0.3 mg2%
Magnesium ? 6 mg1%
Phosphorus ? 19 mg2%
Potassium ? 108 mg2%
Zinc ? 0.07 mg0.6%
Copper ? 0.019 mg2%
Manganese ? 0.071 mg3%
Selenium I 0.4 µg0.7%

% 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: 11%Carbohydrates: 86%Fat: 3%26kcal / 100 g
  • Protein 11%
  • Carbohydrates 86%
  • Fat 3%

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

Vitamin B64%Folate (B9)3%Manganese3%Vitamin C3%Potassium2%Copper2%Pantothenic acid (B5)2%Riboflavin (B2)2%Thiamin (B1)2%Iron2%

Nutritional insights

  • Protein0.77 gin the lowest quarter of vegetables and vegetable products (median 2 g)
  • Fiber1.7 gbelow the median for vegetables and vegetable products (median 2.2 g)
  • Sugars2.9 gabove the median for vegetables and vegetable products (median 2.3 g)
  • Fat0.1 gin the lowest quarter of vegetables and vegetable products (median 0.3 g)
  • Saturated fat0.016 gin the lowest quarter of vegetables and vegetable products (median 0.052 g)
  • Sodium248 mgin the top quarter of vegetables and vegetable products (median 36 mg)
  • Protein per 100 kcal3 gprotein density, useful for comparing foods with different calorie levels
  • Water92.2 gwater per 100 g, which largely explains differences between raw, cooked and dried forms

Full nutrient profile

Fats and cholesterol (2)
Monounsaturated fat ?0.013 g
Polyunsaturated fat ?0.038 g
Amino acids (18)
Tryptophan ?0.011 g
Threonine ?0.018 g
Isoleucine ?0.027 g
Leucine ?0.027 g
Lysine ?0.036 g
Methionine ?0.006 g
Cystine ?0.014 g
Phenylalanine ?0.02 g
Tyrosine ?0.019 g
Valine ?0.018 g
Arginine ?0.1 g
Histidine ?0.012 g
Alanine ?0.021 g
Aspartic acid ?0.042 g
Glutamic acid ?0.12 g
Glycine ?0.032 g
Proline ?0.024 g
Serine ?0.022 g
Individual fatty acids (15)
EPA (omega-3, 20:5 n-3) I0 g
Linoleic acid (omega-6, 18:2) ?0.036 g
SFA 4:0 I0 g
SFA 6:0 I0 g
SFA 8:0 I0 g
SFA 10:0 I0 g
SFA 12:0 I0 g
SFA 14:0 ?0 g
SFA 16:0 ?0.014 g
SFA 18:0 ?0.001 g
MUFA 18:1 ?0.013 g
PUFA 18:3 ?0.002 g
PUFA 20:4 I0 g
MUFA 16:1 I0 g
PUFA 18:4 I0 g
Carotenoids (7)
Beta-carotene I1 µg
Lycopene I0 µg
Lutein + zeaxanthin I3 µg
Retinol Z0 µg
Carotene, alpha I0 µg
Vitamin D (D2 + D3), International Units Z0 IU
Cryptoxanthin, beta I0 µg
Other components (11)
Water ?92.2 g
Alcohol Z0 g
Caffeine Z0 mg
Ash M0.89 g
Theobromine Z0 mg
Energy C109 kJ
Vitamin A, IU C2 IU
Folic acid Z0 µg
Folate, food M13 µg
Vitamin E, added Z0 mg
Vitamin B-12, added Z0 µg

Other forms of Onions

Raw, cooked, dried and processed versions are separate records with their own measured values.

FoodCaloriesProteinCarbsFat
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, spring or scallions (includes tops and bulb), raw Raw 32 1.8 g 7.3 g 0.19 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, 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

FoodCaloriesProteinCarbsFat
Carrots, canned, cooked, no added fat Cooked 25 0.64 g 5.5 g 0.19 g
Carrots, canned, reduced sodium, cooked, no added fat Cooked 23 0.59 g 5.4 g 0.14 g
Cabbage, common, cooked, boiled, drained, with salt Cooked 23 1.3 g 5.5 g 0.06 g
Cabbage, cooked, boiled, drained, without salt Cooked 23 1.3 g 5.5 g 0.06 g
Squash, winter, spaghetti, cooked, boiled, drained, or baked, without salt Cooked 27 0.66 g 6.5 g 0.26 g
Squash, winter, spaghetti, cooked, boiled, drained, or baked, with salt Cooked 27 0.66 g 6.5 g 0.26 g
Turnips, cooked, boiled, drained, without salt Cooked 22 0.71 g 5.1 g 0.08 g
Turnips, cooked, boiled, drained, with salt Cooked 22 0.71 g 5.1 g 0.08 g

Per 100 g. Calories in kcal. n/a: not reported by the source.

Source of the nutrition information

  • USDA FoodData Central: SR Legacy, record 170101. 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.

Frequently asked questions

How many calories are in cooked onions?

100 g of cooked onions has 26 kcal. 1 tbsp chopped (15 g): about 4 kcal. 0.5 cup, chopped or diced (105 g): about 27 kcal.

How much protein is in cooked onions?

Cooked onions contains 0.77 g of protein per 100 g (2% of the 50 g Daily Value), or 0.12 g in 1 tbsp chopped (15 g). About 11% of its calories come from protein. Compared with other vegetables and vegetable products, that is in the lowest quarter (median 2 g).

How many carbs are in cooked onions?

Cooked onions has 6 g of total carbohydrates per 100 g, including 1.7 g of fiber and 2.9 g of sugars.

How much fat is in cooked onions?

Cooked onions contains 0.1 g of fat per 100 g, of which 0.016 g is saturated (0.1% of the Daily Value).

How much sodium is in cooked onions?

100 g contains 248 mg of sodium, 11% of the 2,300 mg Daily Value.

Does onions have the same nutrition cooked and raw?

No. Per 100 g, onions, frozen, chopped, cooked, boiled, drained, with salt has 26 kcal, while onion, raw has 40 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.