Shipping is expensive in Canada because a parcel price is built in layers: a base rate set by the route and the billable weight (often the dimensional weight of an oversized box), a fuel surcharge revised weekly or monthly, then residential or remote-area charges. The carriers publish each of these rules.
The route sets the base rate
Canada Post explains its method: pick the service, find the rate code by cross-referencing the origin and destination postal codes, then read the price for the billable weight in the price sheet. Two identical parcels therefore do not get the same base rate if they leave from or go to different places.
The service you pick also changes which price sheet applies. To compare, keep the same route and the same parcel, and change one variable at a time.
Dimensional weight: you pay for space
Carriers bill the greater of two weights: the actual weight or the dimensional (volumetric) weight, calculated from the box dimensions. A light but large box is billed as if it were heavy.
| Carrier | Services | Factor (cm³ per kg) |
|---|---|---|
| Canada Post | Expedited Parcel, Regular Parcel | 6,000 |
| Canada Post | Xpresspost, U.S. and international services (except Tracked Packet and Small Packet) | 5,000 |
| FedEx | Intra-Canada and international packages | 5,000, dimensions rounded up to the next whole unit |
Older Canada Post documents give a different factor for Expedited Parcel; check the current guide for your service. Canada Post's own example: a 100 × 60 × 20 cm box weighing 8 kg sent by Xpresspost is billed at 24 kg.
The fuel surcharge changes often
The fuel surcharge is added to the base rate and follows the price of diesel, with a lag. Each carrier publishes its own method.
| Carrier | Frequency | Reference |
|---|---|---|
| Canada Post (domestic) | Weekly, effective Monday | Average diesel price measured by Kalibrate, week ending two weeks before |
| UPS Canada (domestic) | Weekly, effective Monday | Average diesel price reported by Natural Resources Canada, lagged two weeks |
| Purolator (courier) | Monthly, effective the first Monday | Four-week diesel average, posted about two weeks ahead |
Canada Post announced temporary fuel surcharge relief for eligible domestic parcels from October 5, 2026 to January 3, 2027. At UPS and Purolator, the fuel surcharge also applies to some additional charges, such as residential delivery.
Residential delivery and remote areas
Couriers add charges based on the type of address or the delivery area. These are not always included in the base rate you see first.
| Carrier | Residential address | Remote or out-of-network area |
|---|---|---|
| UPS Canada | Residential delivery charge | Extended area charge, set by postal code |
| FedEx Canada | Residential delivery surcharge | Out-of-delivery-area surcharge, in tiers; Tier C covers remote areas such as the territories |
| Purolator | Residential area charge | Beyond point charge |
What you can do to pay less
- Measure the packed parcel and use the smallest box that protects the item: it is the only way to lower dimensional weight.
- Compare the total, not the base rate: fuel surcharge, residential or remote-area charges and tax included.
- Check whether the destination is a business or a residential address; with couriers, it can change the charges.
- For a remote destination, compare several carriers: each one defines its own areas and surcharges.
- Compare the same parcel across carriers at the same time, since fuel surcharges change from one week or month to the next.
Official sources
- Canada Post: how the base price is calculated
- Canada Post: fuel surcharges
- Canada Post: temporary fuel surcharge relief (October 5, 2026)
- FedEx Canada: dimensional weight
- FedEx Canada: 2026 rate changes
- UPS Canada: fuel surcharge
- UPS Canada: extended area surcharge (PDF)
- Purolator: how courier fuel surcharges are calculated
- Purolator: terms and conditions of service (PDF)