Net Carbs Calculator

Summary

Enter total carbs, fiber, and sugar alcohols to calculate net carbs for keto and low-carb diet tracking.

How it works

1. Enter the total carbohydrates from the nutrition label.
2. Enter the dietary fiber content (subtract in full — fiber is not digested).
3. Enter any sugar alcohols (erythritol is subtracted in full; others at 50%).
4. The calculator instantly shows net carbs = total carbs − fiber − adjusted sugar alcohols.
5. Add multiple food items to calculate net carbs for an entire meal.
6. Reset or remove individual items to adjust your meal list.

Use cases

• Track daily net carb intake on a ketogenic diet.
• Compare net carbs in packaged foods before buying.
• Calculate net carbs for a full meal or recipe.
• Determine whether a sugar-free product fits your carb budget.
• Teach yourself how fiber and sugar alcohols affect carb counts.
• Plan meals within a specific net carb target (e.g., 20 g/day for strict keto).

Frequently Asked Questions