Onions, Boiled (With Salt)
5 calories per 1 tbsp chopped (15 g), from USDA FoodData Central.
Nutrition facts
- Per 1 tbsp chopped (15 g)% Daily Value
- Calories5 kcal
- Total Fat0 g0%
- Saturated Fat0 g0%
- Trans Fat0 g
- Cholesterol0 mg0%
- Sodium35 mg2%
- Total Carbohydrate1 g1%
- Dietary Fiber0 g1%
- Total Sugars1 g
- Added Sugars—
- Protein0 g
- Vitamin D0 mcg0%
- Calcium5 mg0%
- Iron0.04 mg0%
- Potassium20 mg0%
- Monounsaturated fat0 g
- Polyunsaturated fat0 g
- Vitamin A0 mcg RAE0%
- Vitamin C1 mg0%
- Vitamin E0 mg0%
- Vitamin K0.1 mcg0%
- Thiamin0.01 mg0%
- Riboflavin0 mg0%
- Vitamin B60.02 mg2%
- Folate2 mcg DFE0%
- Vitamin B120 mcg0%
- Pantothenic Acid0.02 mg0%
- Phosphorus10 mg0%
- Magnesium2 mg0%
- Zinc0.03 mg0%
- Selenium0.1 mcg0%
- Copper0.01 mg2%
- Manganese0.02 mg0%
- Choline0 mg0%
%DV for adults and children 4 and older.
Show the mathHide the math
- Calories6.3 kcal → 5 kcal · nearest 5 kcal
- Total Fat0.0285 g → 0 g · shown as 0
- Saturated Fat0.00465 g → 0 g · shown as 0
- Trans Fat0 g → 0 g · shown as 0
- Cholesterol0 mg → 0 mg · shown as 0
- Sodium35.9 mg → 35 mg · nearest 5 mg
- Total Carbohydrate1.43 g → 1 g · nearest 1 g
- Dietary Fiber0.21 g → 0 g · shown as 0
- Total Sugars0.71 g → 1 g · nearest 1 g
- Protein0.204 g → 0 g · shown as 0
- Vitamin D0 mcg → 0 mcg · nearest 0.01 mcg (FDA guidance)
- Calcium3.3 mg → 5 mg · nearest 5 mg (FDA guidance)
- Iron0.036 mg → 0.04 mg · nearest 0.01 mg (FDA guidance)
- Potassium24.9 mg → 20 mg · nearest 10 mg (FDA guidance)
USDA's value for this serving, then what a label prints. Where these numbers come from
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Get the full FDA labelWhere the calories come from
- Protein13% of calories
- Fat4% of calories
- Carbohydrate91% of calories
Questions about Onions
How many calories are in Onions?
Onions, Boiled (With Salt) has 5 calories per 1 tbsp chopped (15 g) and 40 per 100 g, as a Nutrition Facts label rounds them.
How much protein is in Onions?
Onions, Boiled (With Salt) has 0 g of protein per 1 tbsp chopped (15 g) and 1 g per 100 g.
What does %DV mean here?
% Daily Value is the share of FDA's Daily Value in one serving, for adults and children 4 and older. Amounts and percentages are rounded the way a Nutrition Facts label rounds them. Protein shows no %DV: a label needs a protein quality score for it.
Where does this data come from?
- Nutrient values: USDA FoodData Central, SR Legacy, released 2018-04, FDC ID 170100.
- Daily Values and label rounding: FDA, 21 CFR 101.9, as of 2026-02-12.
- Rounding of each amount: 21 CFR 101.9(c).
- %DV: 21 CFR 101.9(d)(7)(ii).
More vegetables and vegetable products
For information only. Check the sources before printing a label.