The capacity and bag sizes we provide are approximations only. The capacity (ex. 1oz, 2oz) is based on tests using whole coffee beans. A bag's capacity will vary depending on the product. For example, salt vs. tea; salt weighs more than most teas. We highly suggest ordering our free sample pack to trial fill your product to determine the right size for your needs.
The bag sizes listed (ex. 3x5) are the bag's outer dimensions (edge-to-edge). For a more accurate estimation of whether your product will fit inside the bag, rely more on the "fillable dimensions" - This takes into account the heat seal areas, zipper, etc.