Carbs in Spaghetti
How many carbs are in spaghetti?
Spaghetti has 5.4g net carbs per 100g — 6.9g total carbs minus 1.5g fiber — plus 0.6g protein, 0.6g fat, and 31 calories. That makes spaghetti relatively low in net carbs and lower than the typical breads and grain, which averages about 45.2g net carbs per 100g. At this carb count, spaghetti is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from USDA FoodData Central; 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 spaghetti keto-friendly?
Yes, spaghetti can fit a keto diet in moderate portions. It has 5.4g net carbs per 100g (6.9g total carbs − 1.5g fiber). On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other breads and grains and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 5.4g | 6.9g | 0.6g | 31 |
| 1 oz (28 g) | 1.5g | 1.9g | 0.2g | 9 |
How many calories are in spaghetti?
Spaghetti has 31 calories per 100g. That's alongside 0.6g protein, 0.6g fat, and 5.4g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 31 |
| Total carbs | 6.9g |
| Net carbs | 5.4g |
| Fiber | 1.5g |
| Sugar | 2.8g |
| Sugar alcohols | 0g |
| Protein | 0.6g |
| Fat | 0.6g |
| Sodium | 17mg |
| Potassium | 108mg |
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 spaghetti?
- Spaghetti has 6.9g of total carbs and 5.4g of net carbs per 100 grams.
- How many net carbs are in spaghetti?
- Spaghetti has 5.4g of net carbs per 100 grams (total carbs 6.9g minus 1.5g fiber).
- Is spaghetti keto-friendly?
- Yes, spaghetti can fit a keto diet in moderate portions. It has 5.4g net carbs per 100g (6.9g total carbs − 1.5g fiber). On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other breads and grains and meals.
- How many calories are in spaghetti?
- Spaghetti has 31 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.