Multiply by 4 Sugar Facts | 0 comments To find the number of calories from sugar in a product, multiply the grams by 4. For example, a product containing 15 grams of sugar has 60 calories from sugar per serving. Fact source Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website This site uses Akismet to reduce spam. Learn how your comment data is processed.