Carbs in Grapefruit
Keto-friendlyGrapefruit (per 100 g) contains 9.1g total carbs, 9.1g net carbs, 0.1g fat, 0.9g protein, and 37 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
9.1g
Net carbs
9.1g
Total carbs
0g
Fiber
0.9g
Protein
0.1g
Fat
37
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 9.1g | 9.1g | 0.9g | 37 |
| 1 oz (28 g) | 2.5g | 2.5g | 0.3g | 10 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 37 |
| Total carbs | 9.1g |
| Net carbs | 9.1g |
| Fiber | 0g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 0.9g |
| Fat | 0.1g |
| Sodium | 0mg |
| Potassium | 143mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in grapefruit?
- Grapefruit has 9.1g of total carbs and 9.1g of net carbs per 100 grams.
- How many net carbs are in grapefruit?
- Grapefruit has 9.1g of net carbs per 100 grams (total carbs 9.1g minus 0g fiber).
- Is grapefruit keto-friendly?
- Yes — with 9.1g net carbs per 100g, grapefruit fits a ketogenic diet in normal portions.
- How many calories are in grapefruit?
- Grapefruit has 37 calories per 100 grams.
