Formula
Dimensional weight = length cm x width cm x height cm / carrier divisor. Chargeable weight = max(dimensional weight, actual weight).
Dimensional Weight Calculator
Calculate freight chargeable weight from parcel dimensions, actual weight and carrier divisor.
Worked example
A 40 cm x 30 cm x 20 cm parcel with a 4,000 divisor has dimensional weight of 6 kg. If actual weight is 5 kg, the chargeable weight is 6 kg.
Professional note
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Regional and unit assumptions
Carrier divisor defaults: Australia Post and StarTrack commonly use 4,000; FedEx, DHL and UPS examples use 5,000. Confirm the current service guide before booking.
Assumptions and limitations
- This calculator is for planning and education, not legal, tax, medical, immigration, engineering or financial advice.
- Use current official rates, contracts, carrier terms, statutes or professional guidance before relying on the result.
- The default values are examples. Replace them with the figures from the job, invoice, contract, bill, service or record being checked.
Methodology & Accuracy
How this calculator is checked
CalculationTime pages are built around visible arithmetic: the formula, assumptions, worked example and practical limitations are shown so the result can be checked rather than simply trusted.
Formula used
Dimensional weight = length cm x width cm x height cm / carrier divisor. Chargeable weight = max(dimensional weight, actual weight).
Standard or basis
Carrier divisor defaults: Australia Post and StarTrack commonly use 4,000; FedEx, DHL and UPS examples use 5,000. Confirm the current service guide before booking.
Where a calculator follows a named legal, trade or industry standard, that standard is cited visibly. Otherwise the page uses transparent general arithmetic and states its limits.Master's Tip
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
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Questions
What is the Dimensional Weight Calculator?
Dimensional weight compares parcel volume against actual scale weight so freight quotes charge the larger of volumetric weight and actual weight.
Can I rely on this as professional advice?
No. Use it as a transparent planning estimate, then verify the current rule, rate, contract or official source for the decision you are making.