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# Upcoming USPS® Rate Change – What You Need To Know Effective June 23, 2019, USPS is having a second rate change requiring the use of dimensional weight to determine pricing for Priority Mail®, Priority Mail Express® and Parcel Select services.

They are also changing the way dimensional weight is calculated.

What is the purpose of Dimensional (DIM) Weight rates?

To charge for the space that a package occupies on a truck instead of just the physical weight alone.

How to Calculate Dimensional Weight?

Determine if the package is larger than 1 cubic foot (1,728 cubic inches); If it below, DIM pricing does not apply.

1)      Measure the Length x Width x Height (In Inches) and divide by 166 (USPS Divisor)

For example: 15” x 15” x 22” = 4,950 cubic inches/166

1)      If the Dimensional Weight is greater than the actual weight of the package, you must pay the Dimensional Weight instead.

A Couple of Cost Savings Tips:

1.       Use the smallest box possible that will fit your item(s).

2.       Use USPS Flat Rate boxes. You pay the flat rate and the DIM weight does not apply. 