Zucchini Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 medium zucchini (124g); per 100 g: 3g net carbs, 16 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in zucchini?
Zucchini — 1 medium zucchini (124g) — has 3.7g net carbs: 3.7g total carbs minus 0g fiber, plus 1.2g protein, 0g fat, and 20 calories. Per 100g that is 3g net carbs (3g total carbs, 0g fiber) and 16 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 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
Is zucchini keto-friendly?
Yes, zucchini can fit a keto diet in moderate portions. 1 medium zucchini (124g) is 3.7g net carbs (3.7g total carbs − 0g fiber); per 100g that is 3g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
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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 — 1 medium zucchini (124g) — has 20 calories, with 1.2g protein, 0g fat, and 3.7g net carbs. Per 100g: 16 calories and 3g net carbs.
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 (1 medium zucchini, 124g) has 3.7g of total carbs and 3.7g of net carbs. Per 100 grams: 3g total, 3g net.
- How many net carbs are in zucchini?
- Zucchini has 3.7g of net carbs per 1 medium zucchini (124g) — 3.7g total carbs minus 0g fiber.
- Is zucchini keto-friendly?
- Yes, zucchini can fit a keto diet in moderate portions. 1 medium zucchini (124g) is 3.7g net carbs (3.7g total carbs − 0g fiber); per 100g that is 3g 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 (1 medium zucchini, 124g) has 20 calories; that is 16 calories per 100 grams.
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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.