To calculate net carbs, look at the nutrition label on a product. Subtract the dietary fiber and sugar alcohol from the total carbohydrates. An online carb counter can be used to calculate the carb count in fresh foods such as fruits and vegetables.Continue Reading
Find the nutrition label on the food in question. This is usually a black-and-white label on the back of jars, boxes and containers.
Determine the total carbohydrates. Subtract dietary fiber and sugar alcohol from the total carbohydrates to arrive at the net carb count.
Look up the carb count for fresh foods, including fruits, vegetables and meats online. There are several online carb counters available that are easy to use and only require users to enter a small amount of information to find the results they need.