Net Carbs Calculator

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US and Canadian labels include dietary fiber inside the total carbohydrate figure. Australian and most European labels show fiber separately and already exclude it from the carb total.
The "Total Carbohydrate" figure from the nutrition facts panel.
g
Fiber listed under Total Carbohydrate. Both soluble and insoluble fiber are subtracted for US/Canadian labels.
g
Total grams of sugar alcohols from the label. If none are listed, leave at 0.
g
Erythritol is almost entirely excreted without being metabolised, so all of its grams are subtracted. All other common sugar alcohols are partially absorbed, so only half their grams are subtracted.
Scale all outputs to the number of servings you are actually eating.
Net carbs per servingLow carb
15g

Total carbs minus fiber minus the absorbed portion of sugar alcohols

Net carbs (all servings)15g
Fiber subtracted8g
Sugar alcohols subtracted2g
Keto budget used (50 g limit)30%
30% % of 50 g limit
Very low<10%Low10%-40%Moderate40%-80%Near limit80%+
Fiber subtracted8
Sugar alcohols subtracted2
Net carbs (per serving)15

15.0 g net carbs per serving - low carb.

  • 8.0 g of fiber was subtracted - fiber is not digested and does not raise blood sugar.
  • 2.0 g of sugar alcohols was subtracted (half of the 4.0 g on the label, because other is only partially absorbed).
  • This accounts for about 30% of the typical 50 g keto daily limit - a low-carb choice.

Next stepNet carbs are a tracking convention, not a regulated or clinical measure. The FDA does not define the term and the American Diabetes Association recommends counting total carbohydrate and monitoring your own blood glucose, because fiber and sugar alcohols are absorbed differently from person to person. If you manage diabetes, treat this figure as a rough guide and follow your care team's carb-counting method.

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