Mode
Divisors vary by carrier and service. The presets are planning shortcuts, not a guarantee of the final billed rule.
Shipping workflows often round billable weight upward rather than to the nearest step.
Actual weight is optional. If you leave it blank, the page will still show dimensional weight.
Use this when you know the parcel length, width, and height.
Use this when volume is already known from a packing table or warehouse system.
Use this when the shipment contains repeated cartons of the same size and weight.
What this calculator is for
- Shipping dimensional weight and volumetric-weight planning.
- Comparing actual weight vs dimensional weight to estimate chargeable weight.
- Checking repeated-carton totals with different rounding bases.
What this calculator does not do
- No carrier rate quotes, booking, or label APIs.
- No oversized-package fees, extra handling, fuel surcharges, or insurance.
- No service-name-specific exceptions, customs, freight class, or bin packing.
How the estimate is calculated
- Parcel volume is calculated from length × width × height unless you enter a known volume directly.
- Dimensional weight is volume divided by the active divisor. The divisor unit changes with the active unit system.
- When actual weight is provided, the page compares actual weight with dimensional weight and uses the larger value as the billable-weight baseline.
- If billable-weight rounding is enabled, the selected baseline is rounded upward to the chosen increment.
- For identical cartons, you can round each parcel before multiplying or calculate the shipment total first and round once at the end.
FAQ
What divisor should I use?
Use the divisor that matches the carrier or service you plan to compare against. This page includes common planning presets, but the billed rule can vary by contract, lane, or service level.
Why is the billable weight higher than the actual weight?
Because carriers often bill by whichever is greater: actual weight or dimensional weight. Bulky parcels can take up a lot of transport space even when they are physically light.
Why can totals change when I round each parcel instead of the shipment total?
Upward rounding on every parcel can add more total billable weight than rounding once at the shipment level. Different workflows use different conventions, so this page lets you compare both approaches.
Can I use this page without the actual weight?
Yes. The page can still show dimensional weight from the parcel size or known volume. Enter actual weight when you want a billable comparison.
Does this include shipping price, surcharges, or oversized-package rules?
No. It focuses only on dimensional weight, actual weight, and billable-weight comparison. Price quotes, surcharges, and special carrier rules are outside the v1 scope.
Next steps
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Comments
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