Carbs in Pizza: The Quick Answer
Pizza contains 22.7g of net carbs per 100g, calculated by subtracting 0.8g of dietary fiber from 23.5g of total carbohydrates. With 220.0 calories, 6.8g protein, and 9.1g 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 Pizza Keto Friendly?
Pizza is high in carbs with 22.7g 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.
Make It Keto: Pizza
You don't have to skip Pizza on a low-carb diet — you just need to know what to order (and what to skip).
| When ordering | Make it keto | Carb savings |
|---|---|---|
| Pizza slice with regular crust (~25-35g net carbs per slice) | Order 'crustless' or eat just the toppings | The cheese and toppings are the best part anyway |
| Pepperoni pizza | Make fathead pizza at home (almond flour + mozzarella dough) | Stretchy, chewy crust — ~5g net carbs per slice |
| Pizza delivery | Cauliflower crust pizza (order or make) | Most pizza chains now offer cauli crust — ask before ordering |
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 Pizza: 23.5g − 0.8g = 22.7g 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.