Dimensional Weight Calculator
Calculate dimensional weight and determine billable weight for shipping packages
About this calculator
A dimensional weight calculator helps determine the billable weight for shipping packages based on their size rather than actual weight. Shipping carriers use dimensional weight pricing to account for lightweight but bulky packages that take up valuable cargo space. This calculator compares your package's actual weight against its dimensional weight and determines which one the carrier will use for billing, helping you estimate accurate shipping costs and optimize packaging decisions.
How to use
Enter your package's length, width, and height in inches or centimeters. Input the actual weight of your package. Select your shipping carrier or enter a custom dimensional weight divisor. The calculator will compute the dimensional weight and show you the billable weight that carriers will use for pricing.
Frequently asked questions
What is dimensional weight pricing?
Dimensional weight pricing charges based on package size rather than actual weight, ensuring carriers are compensated for space-consuming lightweight packages.
How do carriers calculate dimensional weight?
Carriers multiply length × width × height, then divide by a dimensional factor (typically 139-166 for domestic shipments).
When is dimensional weight used for billing?
Carriers use whichever is greater: the actual weight or dimensional weight. Large, lightweight packages are typically charged by dimensional weight.