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Calculate billable weight from package dimensions for courier shipping rates
Couriers charge based on the greater of actual weight vs volumetric weight. Volumetric weight = (Length × Width × Height) / Divisor. The divisor is 5000 for most international carriers (DHL, FedEx, UPS) and 6000 for some domestic services.
Calculate the volumetric (dimensional) weight of packages for shipping cost estimation.
Common questions about volumetric weight calculations and carrier divisors.
Why do carriers use volumetric weight?
Carriers use volumetric weight to charge fairly for large, lightweight packages that take up significant space. Without this pricing, shipping a large box of feathers would cost the same as a small box of metal, despite the space difference.
What divisor should I use?
Use 5000 for most international carriers (DHL, FedEx, UPS, TNT). Use 6000 for some domestic carriers and postal services. Always check with your specific carrier for their divisor.
How can I reduce chargeable weight?
Reduce chargeable weight by using the smallest possible packaging, eliminating empty space, and choosing appropriately sized boxes. Compact, dense packaging minimizes volumetric weight.
Is actual weight ever used instead of volumetric?
Yes, carriers charge based on the greater of actual weight or volumetric weight. If your package is small and dense (actual weight > volumetric), you're charged by actual weight.
Tips for optimizing packaging to reduce volumetric weight charges.
Volumetric weight calculation examples with different divisors.
Formula: (L × W × H) / Divisor
Example: (50 × 40 × 30) / 5000 = 12 kg volumetric
Comparison: If actual is 5 kg, chargeable is 12 kg (volumetric)
Divisors: 5000 (international), 6000 (some domestic)
Supported units, divisors, and calculation method.