Shipping & logistics
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Shipping math for sellers and warehouse teams: dimensional and billable weight with carrier divisors, cubic volume, metric volumetric weight, package girth, landed cost with duty, carton fill percentage, freight density, and approximate NMFC freight class from density. Enter your own rates — we do not pull live carrier tariffs. Confirm divisors and rules on the carrier site before billing.
8 tools in this section
Dimensional Weight
Calculate dimensional (DIM) weight and billable shipping weight from package dimensions and actual scale weight using the 139 or 166 divisor.
Cubic Volume
Calculate a box's cubic volume in cubic inches, cubic feet, or cubic centimeters from length, width, and height dimensions.
Volumetric Weight Calculator (Metric)
Calculate international volumetric (chargeable) weight in kilograms from cm dimensions using the standard air freight divisor.
Shipping Cost Estimator
Estimate shipping cost by multiplying your billable weight by a carrier or freight rate per pound or kilogram you enter.
Package Girth
Calculate package girth and length-plus-girth to check whether a box falls within carrier oversize package limits and fees.
Landed Cost
Calculate total landed cost per shipment — product price, shipping, import duty percentage, and other fees, all combined.
Carton Fill
Calculate what percent of a shipping carton's volume is filled by your product quantity and dimensions before you pack it.
Freight Density
Calculate freight density in lb/ft³ and estimate NMFC freight class from weight and volume — starting point for LTL rate planning.