📦 Multi-Parcel Dimensional Weight Calculator

Estimate billable weight and shipping costs for multiple parcels.

Carriers may charge based on billable weight rather than actual weight. Billable weight is the greater of a parcel’s actual weight and its dimensional (DIM) weight. To calculate DIM weight, the parcel’s dimensions are rounded up to the next whole unit before the volume is divided by the selected DIM divisor.

To use this tool: Select metric or imperial units. All parcel groups in a calculation use the SAME unit system. Use a separate row for each parcel type. Group parcels together when they share the same dimensions, actual weight, DIM divisor, and price per unit; enter the number of parcels in the quantity field. Add another row for parcels with different values. Save the calculation, export a text summary with totals, or download a CSV with parcel details and grand totals.

This tool is for estimation purposes only. Always verify specific dimensional weight rules and factors directly with your carrier..