Carbs in Red Grapefruit
Keto-friendlyRed Grapefruit (per 100 g) contains 7.5g total carbs, 6.4g net carbs, 0.1g fat, 0.6g protein, and 30 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
6.4g
Net carbs
7.5g
Total carbs
1.1g
Fiber
0.6g
Protein
0.1g
Fat
30
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 6.4g | 7.5g | 0.6g | 30 |
| 1 oz (28 g) | 1.8g | 2.1g | 0.2g | 8 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 30 |
| Total carbs | 7.5g |
| Net carbs | 6.4g |
| Fiber | 1.1g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 0.6g |
| Fat | 0.1g |
| Sodium | 0mg |
| Potassium | 127mg |
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 red grapefruit?
- Red Grapefruit has 7.5g of total carbs and 6.4g of net carbs per 100 grams.
- How many net carbs are in red grapefruit?
- Red Grapefruit has 6.4g of net carbs per 100 grams (total carbs 7.5g minus 1.1g fiber).
- Is red grapefruit keto-friendly?
- Yes — with 6.4g net carbs per 100g, red grapefruit fits a ketogenic diet in normal portions.
- How many calories are in red grapefruit?
- Red Grapefruit has 30 calories per 100 grams.
