Side-by-side dimensional weight comparison. Same package, two carriers — see exactly what each would bill, and which wins for your shipment profile.
Awaiting dimensions. Enter package details to compute billable weight.
DHL Express has the more favorable divisor (5000 vs 4000 cm³/kg) — meaning lower billable weight for the same package.
| Australia Post | DHL Express | |
|---|---|---|
| Imperial divisor (in³/lb) | Metric only | 139 |
| Metric divisor (cm³/kg) | 4000 | 5000 |
| DIM applies | No minimum | No minimum |
| Region | Australia | Germany · Global |
Domestic Australian shipments, AU-NZ and AU-Asia lanes
International express shipments, cross-border B2B, Asia-Europe lanes
Divisors don't tell you everything — base rates, fuel surcharges, and discounts also matter.
Australia Post ↗
DHL Express ↗
It depends on your package. Australia Post's divisor is 4000 cm³/kg, while DHL Express's is 5000 cm³/kg. For DIM-weighted packages (lightweight bulky), the carrier with the higher divisor wins on billable weight. For dense packages where actual weight wins, the divisor doesn't matter and the cheaper base rate wins. Use the calculator above to see which gives you the lower billable weight for your specific package.
The formula is the same: volume divided by the divisor, rounded up, with the billable weight being the greater of the result or the actual weight. The divisors differ (4000 cm³/kg for Australia Post, 5000 cm³/kg for DHL Express), which is what produces different billable weights for the same package.
Yes — many shippers use both, routing each package to whichever carrier is cheaper for that shipment profile. Multi-carrier rate-shopping platforms (Shippo, ShipStation, Easyship) automate this decision in real time based on weight, dimensions, destination, and your negotiated rates with each carrier.
This page focuses on Australia Post vs DHL Express. To see how all major carriers compare for your specific shipment, use the main calculator with the global setting.
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