Net Carb Calculator

How to calculate Net carb calculator?

Net carbs estimate the digestible carbohydrates that affect blood glucose by removing non-digestible components from the total carbohydrate value.

Use the core formula: Net Carbs (g) = Total Carbs − Dietary Fiber − Effective Sugar Alcohols

Using the Net carb calculator calculator: an example

Example serving: 20 g total carbs, 5 g dietary fiber, and 6 g sugar alcohols.

Step-by-step calculation:

• Start with Total Carbs: 20 g per serving.
• Subtract Dietary Fiber: 20 − 5 = 15 g.
• Subtract effective Sugar Alcohols (e.g., erythritol counted fully): 15 − 6 = 9 g.
• Result: Net Carbs = 9 g per serving.

Frequently Asked Questions

Should I always subtract sugar alcohols?

It depends on the type: erythritol is commonly subtracted in full, while others (xylitol, maltitol) may be only partially subtracted; check ingredient specifics.

Do I subtract all fiber types?

Most dietary fiber listed on labels is non-digestible and is subtracted from total carbs, but when in doubt consult product details or nutrition guidance.

How do I handle different serving sizes?

Scale all values to the actual serving you consume (multiply or divide the label values) before applying the net carbs formula.