Dimensional Weight
Length, width and height, then a carrier divisor. UPS and FedEx domestic divide by 139, USPS by 166, and DHL international by 139. Each side is rounded up before multiplying. Not a postage price.
Frequently asked questions
Why round the sides first?
Carriers typically round each side up to a whole inch before multiplying. Skipping that makes the weight too low.
Is this a postage price?
No. It only estimates dimensional weight from a common divisor. Not shipping advice — rates and live carrier rules vary. Use Billable Weight to compare with scale weight.
Is my data sent to a server?
No. This calculator runs entirely in your browser. Nothing you type is uploaded or stored by Qivtools.