How many carbs are in onions?
Onions (1 cup, chopped) has 16.2 g of total carbs and 2.2 g of fiber, which is 13.9 g of net carbs. Per 100 g: 10.1 g carbs, 8.7 g net carbs.
Carbs & keto check
Is onions keto? Carbs in onions
In moderation
In moderation. Onions has 13.9 g net carbs per serving (1 cup, chopped); 8.7 g per 100 g, about 70% of a 20 g daily limit, so keep the portion small.
Net carbs · 1 cup, chopped13.9 g
Net carbs · 100 g8.7 g
Total carbs16.2 g
Fiber2.2 g
Calories67
Protein1.5 g
230 g of onions = a whole 20 g net carb day
Nutrition
Carbs in onions by serving
Net carbs = total carbs − fiber. Values from the Keto.app food database.
| Serving | Net carbs | Carbs | Fiber | kcal | Protein | Fat |
|---|---|---|---|---|---|---|
| 100 g | 8.7 g | 10.1 g | 1.4 g | 42 | 0.9 g | 0.1 g |
| 1 cup, chopped (160 g) | 13.9 g | 16.2 g | 2.2 g | 67 | 1.5 g | 0.1 g |
| 1 oz (28.4 g) | 2.5 g | 2.9 g | 0.4 g | 12 | 0.3 g | 0 g |
| 1 tbsp chopped (10 g) | 0.9 g | 1 g | 0.1 g | 4 | 0.1 g | 0 g |
| 1 medium (110 g) | 9.6 g | 11.1 g | 1.5 g | 46 | 1 g | 0.1 g |
| 1 large (150 g) | 13.1 g | 15.2 g | 2.1 g | 63 | 1.4 g | 0.1 g |
| 1 small (70 g) | 6.1 g | 7.1 g | 1 g | 29 | 0.6 g | 0.1 g |
| 1 cup, sliced (115 g) | 10 g | 11.6 g | 1.6 g | 48 | 1.1 g | 0.1 g |
From Keto.app data
What keto dieters actually log
Onions has been added to Keto.app food diaries 225,770 times over about 10 years.
Most-logged results for “onions”
- Onions225,770
- Red Onions116,508
- Publix Onions60,841
- Sweet Onions27,630
- Onion Powder14,828
Times logged by Keto.app users, over about 10 years.
FAQ
Onions on keto
Is onions keto friendly?
In moderation. Onions has 13.9 g net carbs per serving (1 cup, chopped); 8.7 g per 100 g, about 70% of a 20 g daily limit, so keep the portion small.
How much onions can I eat on keto?
On a strict 20 g net carb day, 230 g of onions would use your entire carb budget. Most people on keto keep it to a small portion.
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