Estimate shipment chargeable weight by comparing total actual weight with total volumetric weight. This planning calculator uses a transparent shipment-level comparison; carrier rules may differ.
Measurement guide
Use these notes to understand the comparison and avoid common freight-planning mistakes.
Chargeable weight is the weight value used as a basis for freight charging under a carrier or service's rules. A common planning comparison is between actual weight and volumetric weight, with the larger value often being relevant. Carrier rules vary.
CargoMeasure uses a transparent shipment-level planning method. It does not claim to reproduce every carrier invoice.
Actual weight is measured using a scale. Volumetric weight is calculated from package dimensions using a divisor. For dimensional weight alone, use the Volumetric Weight Calculator.
For 10 cartons measuring 50 cm × 40 cm × 30 cm with actual weight of 8.5 kg each, actual shipment weight is 85 kg. With a 5000 divisor, volumetric weight is 12 kg per carton and 120 kg total. The estimated chargeable weight is max(85, 120) = 120 kg.
For 10 cartons measuring 50 cm × 40 cm × 30 cm with actual weight of 15 kg each and a 5000 divisor, actual weight is 150 kg and volumetric weight is 120 kg. The estimated chargeable weight is 150 kg.
For the same 50 cm × 40 cm × 30 cm carton, a 5000 divisor gives 12 kg volumetric weight, while a 6000 divisor gives 10 kg. A smaller divisor produces a larger volumetric-weight result.
CBM measures physical shipment volume. Volumetric weight converts dimensional volume into a weight-equivalent value. Chargeable weight compares relevant weights according to the selected planning method.
Carrier results can differ because of different divisors, rounding rules, package-level calculations, shipment-level calculations, minimum billable weights, service-specific rules, route-specific rules, and special cargo rules.
FAQ
Chargeable weight is the weight value used as a basis for freight charging under a carrier or service's rules.
This calculator compares total actual shipment weight with total volumetric shipment weight and uses the higher value as the planning estimate.
Not always. Actual weight may win, but volumetric weight can be higher for bulky lightweight cargo.
Not always. Volumetric weight is one side of the comparison; actual weight is the other.
A large carton can occupy more space than its scale weight suggests, so dimensional rules may produce a higher planning weight.
Use the divisor required by your carrier, service, route, or freight forwarder.
Yes. Add up to 20 package types with separate dimensions, quantities, and actual weights.
CBM is shipment volume. Chargeable weight may use volumetric weight derived from volume, but carrier rules decide the billing method.
Carriers may apply different divisors, rounding, package-level comparisons, minimums, service rules, or route rules.
Yes. Use packed outer carton dimensions unless your carrier tells you to measure differently.