

Prepaid Forever Priority Mail Flat Rate ® Packagingġ. Priority Mail Flat Rate Products Expand All Free Supplies 8 You'll need to know your package’s weight, shape, and size measurements.Ĭalculate a Price More Priority Mail Service Details How to Send a Package: Domestic TIP: Use the USPS ® Price Calculator tool to calculate your domestic postage costs. More than 2 cubic feet (3,456 cubic inches): add $25.00.Between 22 and 30 inches long: add $4.00.Nonstandard Fee: You’ll pay an extra fee for sending a nonstandard size if your package measures:.If you give inaccurate dimensions and/or don’t pay the DIM weight rate (when it applies), you’ll pay a dimension-noncompliance fee.If the DIM weight is greater than the actual package weight, you’ll need to pay the DIM weight price.Multiply Length x Width x Height and divide by 166 to get the DIM weight in pounds.

If your package is larger than 1 cubic foot (1,728 cubic inches):
