Carbs in Watermelon
Keto-friendlyWatermelon (per 100 g) contains 7.1g total carbs, 7.1g net carbs, 0.3g fat, 0.5g protein, and 31 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
7.1g
Net carbs
7.1g
Total carbs
0g
Fiber
0.5g
Protein
0.3g
Fat
31
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 cup diced | 10.8g | 10.8g | 0.8g | 47 |
| 100 g (3.5 oz) | 7.1g | 7.1g | 0.5g | 31 |
| 1 oz (28 g) | 2g | 2g | 0.1g | 9 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 31 |
| Total carbs | 7.1g |
| Net carbs | 7.1g |
| Fiber | 0g |
| Sugar | 7.1g |
| Sugar alcohols | 0g |
| Protein | 0.5g |
| Fat | 0.3g |
| Sodium | 40mg |
| Potassium | 0mg |
Source: Open Food Facts (Generic). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in watermelon?
- Watermelon has 7.1g of total carbs and 7.1g of net carbs per 100 grams.
- How many net carbs are in watermelon?
- Watermelon has 7.1g of net carbs per 100 grams (total carbs 7.1g minus 0g fiber).
- Is watermelon keto-friendly?
- Yes — with 7.1g net carbs per 100g, watermelon fits a ketogenic diet in normal portions.
- How many calories are in watermelon?
- Watermelon has 31 calories per 100 grams.
- How many carbs are in 1 cup diced of watermelon?
- 1 cup diced of watermelon (152g) has about 10.8g net carbs, 10.8g total carbs, and 47 calories.
