How many carbs are in onions, raw?
1 whole of onions, raw contains about 12.5g of carbohydrate, 10g net carbs after subtracting 2.5g of fiber, 1.3g of protein, and 56 calories.
Carbs by portion size
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1 ring (5g) | 0.4g | 0.1g | 0.3g |
| 1 slice (15g) | 1.3g | 0.3g | 1g |
| 1 whole (148g) | 12.5g | 2.5g | 10g |
| 1 cup (160g) | 13.5g | 2.7g | 10.8g |
| 100 grams (100g) | 8.5g | 1.7g | 6.8g |
Net carbs in onions, raw
1 whole of onions, raw contains 10g of net carbs — total carbs (12.5g) minus dietary fiber (2.5g). Net carbs are the carbs your body actually digests and that raise blood glucose. See our guide to net carbs for how this calculation works and when to use it.
Full nutrition for onions, raw (per 100g)
- Calories: 38 kcal
- Carbohydrate: 8.5g
- Dietary fiber: 1.7g
- Sugars: 5.8g
- Protein: 0.9g
- Fat: 0.1g
Reference values from USDA FoodData Central (survey fndds dataset, fdcId 2345315). Values are per 100 grams.
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How many carbs are in onions, raw?
1 whole of onions, raw contains about 12.5g of total carbohydrate. After subtracting 2.5g of fiber, the net carbs are about 10g.
How many net carbs are in onions, raw?
Net carbs in 1 whole of onions, raw are about 10g — that is total carbs (12.5g) minus dietary fiber (2.5g). See our net carbs explainer for the full calculation.
Is onions, raw good for diabetics?
Onions, raw contains carbohydrates that will raise blood glucose. Whether it fits your meal plan depends on the portion and your overall daily target. Most U.S. diabetes care teams use total carbs (not net) for insulin dosing — see our diabetes carb-counting guide.
Is onions, raw keto-friendly?
Whether onions, raw fits a keto plan depends on your daily net-carb budget (typically under 20–30g per day). One serving (1 whole) provides about 10g of net carbs.