Start with the fundamentals
Formula
How dimensional weight works
Formula, billable-weight rule, rounding questions and a worked example.
ComparisonDivisor 139 vs. 166
Why a lower divisor produces a higher planning weight.
BillingActual vs. billable weight
How the controlling weight is selected and what it does not include.
Improve package data and packaging
Measurement
How to measure a package
A repeatable method for outside dimensions and irregular parcels.
OptimizationReduce dimensional weight
Remove unnecessary volume without weakening product protection.
OperationsPackaging audit workflow
Test changes against real shipment volume, damage risk and labor.
Plan across units and total cost
Metric
Metric dimensional weight
Use centimeters, kilograms and the correct contract divisor.
ChecklistShipping cost checklist
Look beyond weight to zones, fees, service and packaging costs.
ReferenceShipping glossary
Plain-language definitions of dimensional-weight terms.
Run your own comparison
Enter the packed dimensions, scale weight, quantity and the divisor from your current agreement.
Open the free calculator