Red Onion: Calories and Nutrition Analysis
Calories in red onion
100g of red onion contain about 33 calories (kcal).
Calories per:
ounce
| one red onion
| cup
| half cup
For example, a medium size red onion (90 g) contain about 30 calories.
This is about 2% of the daily caloric intake for an average adult with medium weight and activity level (assuming a 2000 kcal daily intake).
Scroll down for details and nutrition tables.
Nutrition Facts
Red OnionServing size:
medium size red onion (90 g) change
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Amount Per Serving:
To visualize how much 30 kcal actually is, keep in mind that the calorie content of medium size red onion is similar to that of, for example:
- 0.5 apple
- 1.5 cubes of sugar
Take a quick look at the tables below for detailed information about red onion nutrition.
100g of Red Onion
Nutrition
- Calories33
- Carbs Total6.1 g
- Dietary fiber1.7 g
- Fat0.4 g
- Saturated fat0.11 g
- Protein1.2 g
- Water90.8 g
Vitamins
- Vit A2 IU
- Vit B1 (Thiamine)0.03 mg
- Vit B2 (riboflavin)0.03 mg
- Vit B3 (Niacin)0.2 mg
- Vit B60.1 mg
- Vit C6 mg
- Vit E0.12 mg
Minerals
- Potassium121 mg
- Phosphorus14 mg
- Magnessium8 mg
- Calcium25 mg
- Sodium6 mg
- Iron0.5 mg
- Zink0.24 mg
- Beta karoten12 mcg
Per 100 g, Red onion is low in sodium and saturated fat.
Sodium is a mineral eaten mostly as salt (1 g of sodium is about 2.5 g of salt). The FDA Daily Value is 2,300 mg.
How many calories are in red onions?
- Medium size red onion (90 g)30 kcal
- Cup of red onion (160g)53 kcal
- Half cup of red onion (80g)26 kcal
- Ounce (oz) of red onion9 kcal
Compare red onion:
red onion vs onion, red onion vs peas, red onion vs shallot, red onion vs cherry tomato, red onion vs white onion, red onion vs green onions, see all compares of red onion.
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About the data
Nutrition values on this page are given per 100 g of the food and are based on the official United States Department of Agriculture FoodData Central database. The exact record used for each food is linked under the tables.
Marcin Piotrowicz – calories-info.com creator · Healthy diet and healthy lifestyle promoter. The information is for general purposes and is not medical or dietary advice.
