You must calculate the Dimensional Weight BEFORE using the mailing system to process your mail.
The easiest way to calculated Dimensional Weight is to use our handy online calculator or NeoShip online shipping software. You can also calculate the Dimensional Weight by hand.

Calculating the Dimensional Weight using the Online Calculator:
• Go to the Online Neopost Calculator.
• Measure the Length, Width and Height of the shipping carton.
• Enter the dimensions: Length, Width and Height into the Online Calculator.
• Press calculate and the calculated weight will be displayed.
• Determine if the calculated weight is higher then the actual weight, if it is go to manual weight on the mailing system and enter the calculated weight, select your desired class, and enter the zip code.
Calculating the Dimensional Weight by Hand:
• If you do decide to calculate dimensional weight manually, you first need to multiply the Length, Width, and Height of what you are sending to determine if it is over 1 cubic foot or 1,728 cubic inches.
• If your package is less than 1,728 cubic inches. Your package will be priced off of the actual weight.
• If your package is greater than 1,728 cubic inches, you will divide the cubic inches by 166 to calculate the weight of your package.
• Determine if the calculated weight is higher then the actual weight, if it is go to manual weight on you mailing system and enter the calculated weight, select your desired class, and enter the zip code.