Carbs in Zucchini
Keto-friendlyHow many carbs are in zucchini?
Zucchini has 3g net carbs per 100g — 3g total carbs minus 0g fiber — plus 1g protein, 0g fat, and 16 calories. 1 medium zucchini (124g) works out to about 3.7g net carbs and 20 calories. That makes zucchini relatively low in net carbs and lower than the typical vegetable, which averages about 17.9g net carbs per 100g. With this carb count, zucchini fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is zucchini keto-friendly?
Yes, zucchini can fit a keto diet in moderate portions. It has 3g net carbs per 100g (3g total carbs − 0g fiber). A typical serving — 1 medium zucchini (124g) — is about 3.7g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 medium zucchini | 3.7g | 3.7g | 1.2g | 20 |
| 100 g (3.5 oz) | 3g | 3g | 1g | 16 |
| 1 oz (28 g) | 0.8g | 0.8g | 0.3g | 4 |
How many calories are in zucchini?
Zucchini has 16 calories per 100g. 1 medium zucchini (124g) has about 20 calories. That's alongside 1g protein, 0g fat, and 3g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 16 |
| Total carbs | 3g |
| Net carbs | 3g |
| Fiber | 0g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 1g |
| Fat | 0g |
| Sodium | 0mg |
| 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 zucchini?
- Zucchini has 3g of total carbs and 3g of net carbs per 100 grams.
- How many net carbs are in zucchini?
- Zucchini has 3g of net carbs per 100 grams (total carbs 3g minus 0g fiber).
- Is zucchini keto-friendly?
- Yes, zucchini can fit a keto diet in moderate portions. It has 3g net carbs per 100g (3g total carbs − 0g fiber). A typical serving — 1 medium zucchini (124g) — is about 3.7g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
- How many calories are in zucchini?
- Zucchini has 16 calories per 100 grams.
- How many carbs are in 1 medium zucchini?
- 1 medium zucchini (124g) has about 3.7g net carbs, 3.7g total carbs, and 20 calories.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.