[header] How to count carbohydrates [title] Find the total amount of a serving size at the top of the nutrition label. [step] Product labels give nutritional information based on serving size, not the entire contents of a package. Serving size is generally listed in both volume amounts and weight measurements. 
The weight is usually listed in parentheses next to the volume amount. For example , 1 cup of this product weighs 250 grams (8.8 oz).