Onion vs Green onions: Which Has More Calories?
Per 100 g, Onion has 40 kcal and Green onions has 32 kcal, so Green onions has 20% fewer calories.
Onion has more carbohydrates (9.34 g vs 7.34 g). Relative to calories, Green onions is the better protein source (5.72 g vs 2.75 g of protein per 100 kcal).


Nutrition Facts
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Amount Per Serving:
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Amount Per Serving:
Onion vs Green Onions 100g Compare
| per 100g | Onion | Green onions |
|---|---|---|
| Calories | 40 | 32 |
| Carbohydrates | 9.34 g | 7.34 g |
| Fat | 0.1 g | 0.19 g |
| Dietary fiber | 1.7 g | 2.6 g |
| Protein | 1.1 g | 1.83 g |
| Water | 89.11 g | 89.83 g |
| Calcium | 23 mg | 72 mg |
| Iron | 0.21 mg | 1.48 mg |
| Magnessium | 10 mg | 20 mg |
| Potassium | 146 mg | 276 mg |
| Sodium | 4 mg | 16 mg |
| Vitaminium B1 (Thiamine) | 0.046 mg | 0.055 mg |
| Vitaminium B2 (riboflavin) | 0.027 mg | 0.08 mg |
| Vitaminium B3 (Niacin) | 0.116 mg | 0.525 mg |
| Vitaminium B6 | 0.12 mg | 0.061 mg |
| Vitaminium B9 (Folic acid) | 0.019 µg | 0.064 µg |
| Vitaminium C | 7.4 mg | 18.8 mg |
| Vitaminium E | 0.02 mg | 0.55 mg |
More Calories in Onion
At first glance, you can see that in onion is more calories than in green onions.
Onion has 40 kcal per 100g and green onions 32 kcal per 100g so it is pretty easy to calculate that the difference is about 25%.
In onion and in green onion most calories came from carbs.
See tables below to compare onion with green onions in details.
Onion 100g
40kcalCalories source
- 88% CARBS.
- 10% PROTEIN
- 2% FAT
Green onions 100g
32kcalCalories source
- 76% CARBS
- 19% PROTEIN
- 4% FAT
Compares of onion
Compares of green 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.