Onion: calories and nutrition facts
Per 100 g: 40 kcal, 1.1 g protein, 7.6 g carbohydrates and 0.1 g fat. A typical serving (1 piece, 110 g) provides about 44 kcal.
Values per 100 g; drinks and milk per 100 ml. Carbohydrates exclude fibre.
Nutrition facts
| Nutrition facts | per 100 g | 1 piece · 110 g |
|---|---|---|
| Energy | 166 kJ / 40 kcal | 183 kJ / 44 kcal |
| Fat | 0.1 g | 0.1 g |
| of which saturates | < 0.1 g | < 0.1 g |
| Carbohydrate | 7.6 g | 8.4 g |
| of which sugars | 4.2 g | 4.7 g |
| Fibre | 1.7 g | 1.9 g |
| Protein | 1.1 g | 1.2 g |
| Salt | 0.01 g | 0.01 g |
Carbohydrates exclude fibre, as on UK and EU labels. “–” means: not stated in the source.
Frequently asked questions
How many calories are in an onion?
40 kcal (166 kJ) per 100 g. 1 piece (110 g) provides about 44 kcal.
How many carbs are in an onion?
7.6 g carbohydrates per 100 g, of which 4.2 g sugars, plus 1.7 g fibre. 1 piece (110 g) has about 8.4 g carbohydrates.
Compared
Calories per 100 g or 100 ml in Vegetables.
Source and notes
Average values from the United States. Variety, ripeness, origin, recipe and preparation change the values; for packaged food the label applies. Not dietary advice.
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