Canada Post uses a divisor of 6000 cm³/kg across all parcel services. This is more favorable than the 5000 used by many international carriers, but you only see the benefit on metric measurements.
Awaiting dimensions. Enter package details to compute billable weight.
| Service | Imperial (in/lb) | Metric (cm/kg) | Notes |
|---|---|---|---|
| Priority | — | 6000 | All packages |
| Xpresspost | — | 6000 | All packages |
| Expedited Parcel | — | 6000 | All packages |
| U.S. & International services | — | 6000 | Most services |
Domestic Canadian shipments, US-Canada cross-border, predictable volumetric pricing
Time-critical international (DHL/FedEx faster cross-border)
Run an actual rate quote on Canada Post's official site to confirm pricing and check current surcharges.
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Canada Post uses a divisor of 6000 cm³/kg (metric) — this carrier publishes only metric divisors. The DIM weight formula is volume divided by this number, rounded up to the nearest whole pound or kilogram.
Canada Post applies dimensional weight to packages above No minimum. The billable weight is always the greater of the actual weight or the calculated DIM weight.
Use right-sized packaging — every cubic inch you save is divided by the divisor and removed from your billable weight. Avoid excessive void fill and consider custom box sizes for products you ship frequently. For occasional shippers, use the calculator above to test packaging changes before you commit to new materials.