Trying to figure out how many net carbs are actually in a food? Enter the total carbohydrates, fiber, and sugar alcohols from the nutrition label below to get a quick net carb estimate. This free calculator is designed for anyone following keto or a lower-carb eating plan who wants an easier way to understand nutrition labels.
Free Net Carb Calculator
Quickly estimate net carbs by subtracting fiber and eligible sugar alcohols from total carbohydrates.
Your Estimated Net Carbs
How to Calculate Net Carbs
Net carbs are commonly used by people following a keto or low-carb eating pattern because they focus on carbohydrates that may have a greater impact on blood sugar.
What Counts as Fiber?
Dietary fiber is typically subtracted from total carbohydrates when estimating net carbs because fiber is not fully digested in the same way as other carbohydrates.
What About Sugar Alcohols?
Some sugar alcohols are commonly subtracted when calculating net carbs, but they are not all metabolized the same way. Erythritol is often fully subtracted, while other sugar alcohols may be only partially subtracted depending on the product and individual approach.
What About Allulose?
Allulose is a rare sugar that is sometimes listed separately from sugar alcohols on nutrition labels. Many low-carb eaters subtract it when estimating net carbs because it contributes very few usable calories.