Dimensional weight, also called DIM weight or volumetric weight, is a pricing method that uses an estimated weight calculated from the length, width, and height of a package divided by a specific divisor determined by the carrier.
For certain carriers, like USPS, UPS, and FedEx, a shipment's billable shipping cost is calculated based on dimensional weight if that value is higher than the actual weight.
To ensure you are receiving accurate shipping quotes, we recommend that you always include a package's total weight and package dimensions.
