Red Onion Nutrition Facts & Calories
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).
Red onion key facts
The nutrients that matter most in fruit and vegetables, per 100 g, compared with carrot.
| Nutrient (per 100 g) | Red Onion | Carrot a common vegetable |
|---|---|---|
| Fiber | 1.7 g | 2.8 g |
| Vitamin C | 6 mg | 5.9 mg |
| Potassium | 121 mg | 320 mg |
Scroll down for details and nutrition tables.
Nutrition Facts
Red OnionServing size:
medium size red onion (90 g) change
5g 10g 15g 20g 30g 40g 50g 60g 80g 100g 120g 140g 160g 180g 200g 220g 250g 300g 350g 400g 450g 500g 600g 700g 800g 900g 1000g
1oz 2oz 3oz 4oz 5oz 6oz 7oz 8oz 10oz 12oz 15oz 20oz 25oz 30oz 35oz 40oz 50oz
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 medium apple (96 kcal)
- 0.5 medium banana (116 kcal)
- 1 medium carrot (25 kcal)
- 0.5 medium potato (69 kcal)
Take a quick look at the tables below for detailed information about red onion nutrition.
100g of Red Onion
Nutrition
- Calories 33
- Carbs Total 6.1 g
- Dietary fiber 1.7 g
- Fat 0.4 g
- Saturated fat 0.11 g
- Protein 1.2 g
- Water 90.8 g
Vitamins
- Vit A 2 IU
- Vit B1 (Thiamine) 0.03 mg
- Vit B2 (riboflavin) 0.03 mg
- Vit B3 (Niacin) 0.2 mg
- Vit B6 0.1 mg
- Vit C 6 mg
- Vit E 0.12 mg
Minerals
- Potassium 121 mg
- Phosphorus 14 mg
- Magnessium 8 mg
- Calcium 25 mg
- Sodium 6 mg
- Iron 0.5 mg
- Zink 0.24 mg
- Beta karoten 12 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.
Foods with similar calories:
- Strawberries calories 32 kcal
- Fodder cabbage calories 32 kcal
- Epazote calories 32 kcal
- Okra calories 33 kcal
- Cuban coffee calories 33 kcal
- Oyster mushrooms calories 33 kcal
- Melon calories 34 kcal
- Broccoli calories 34 kcal
More in Vegetables:
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.
