

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): Dimensional (DIM) weight rates apply to large, lightweight packages.


Use our Priority Mail Flat Rate Envelopes or Boxes that come in standard sizes so you don't have to worry about measuring them.Pay the same price for mailpieces weighing up to 70 lbs going anywhere in the U.S.Weight, Size, & Shape Requirements Use USPS Priority Mail Flat Rate packaging and pay one price:
