Carbs in Pasta: The Quick Answer
Pasta contains 24.9g of net carbs per 100g, calculated by subtracting 0.0g of dietary fiber from 24.9g of total carbohydrates. With 131.0 calories, 5.2g protein, and 1.1g fat per 100g, it is classified as High Carbs for carbohydrate content.
Net carbs — not total carbs — are what matter for keto and low-carb diets. Only net carbs raise blood sugar and affect insulin, which is why tracking them accurately is key to staying in ketosis. Use our Keto Macro Calculator to find your daily net carb limit based on your body and goals.
Is Pasta Keto Friendly?
Pasta is high in carbs with 24.9g net carbs per 100g. It is generally not suitable for strict keto (under 20g net carbs/day) but may fit into a broader low-carb diet depending on portion size and your daily limit.
Best Low-Carb Swaps for Pasta
Pasta is high in carbs. If you're eating low-carb or keto, these swaps deliver the same satisfaction with a fraction of the net carbs.
| Instead of | Try this | Why it helps |
|---|---|---|
| Pasta (1 cup cooked, ~37g net carbs) | Zucchini noodles (zoodles) | Spiralize or use a peeler — ~3g net carbs per cup |
| Pasta in a tomato sauce | Shirataki noodles | Almost zero calories and carbs — soak and dry-fry before using |
| Pasta in a cheesy bake | Hearts of palm pasta | Firm texture holds up to baking, ~3g net carbs per serving |
| Pasta salad | Cucumber noodles or spiralized jicama | Stays crisp, refreshing, great with Italian dressing |
How Net Carbs Are Calculated
Net carbs are calculated by subtracting dietary fiber (and sugar alcohols, if present) from total carbohydrates: Net Carbs = Total Carbs − Fiber. For Pasta: 24.9g − 0.0g = 24.9g net carbs per 100g.
Dietary fiber is subtracted because it passes through the digestive system without being absorbed as glucose. It does not raise blood sugar or trigger an insulin response, making it irrelevant for carb counting on keto and low-carb diets.