USPS® mailing and shipping price adjustments take effect July 13, 2025 – stay informed on the changes. See full details. 

Dimensional (DIM) Weight Calculator & Resource Center

Calculate
0 lbs.


Minimize the effects of DIM weight on your shipping costs by using the rate shopping feature in S.M.A.R.T..
 

  1. Select carrier and enter length, width, and height
  2. Press Calculate
  3. Enter the weight into your mailing system to determine the shipping rate

 

To see the various Dimensional Weight policies of parcel shipping carriers, download our helpful guide. 

Track and manage your DIM Weight packages with S.M.A.R.T..