Calculate the Distance Between Canadian Postal Codes
A distance between two postal codes is a distance between two centroids, not two addresses - and Canadian postal codes vary enormously in how much ground they cover, from a single downtown building to many kilometres of rural road. This tool states that honestly: a straight-line distance, with the real range the address data behind each code actually supports, not a confident-looking decimal it can't back up. It is never a road distance - actual driving distance will be longer, typically by a fifth to a third.
See why the range matters before you calculate.
Comparing two sites, planning a delivery run, or working out how far apart two Canadian addresses roughly are? This tool gives the straight-line distance between any two postal codes, or a full distance matrix for a list of them, with CSV export for the matrix. Every figure comes with the real uncertainty the underlying address data supports - not a confident-looking number that happens to be wrong.
The data behind it is the same Statistics Canada National Address Register build used by this site's other Canadian postal code tools: each code's centroid is the mean position of its own served addresses, with PO box, postal station, and general delivery records already excluded. That same build also measures how far each code's real addresses spread from that centroid - the number this tool's honest range is built from, not a rule of thumb.
Before you read a number: what this distance can and can't tell you
- The figure is between two postal code centroids, not two addresses. If both codes have an address spread under 10 metres, every address on record for each shares one location, and the distance is exact. Otherwise, the true distance between two specific addresses could reasonably be different from the centroid figure, up to each code's own measured spread.
- The range shown is the outer bound, not the likely answer. It assumes both addresses sit at the far edge of their own code's spread, in exactly opposing directions - a rare configuration. Most real address pairs land much closer to the centre figure than to either edge of the range.
- Rural postal codes (second character zero) typically have a far larger address spread than urban ones - sometimes many kilometres - so a pair involving one will carry a correspondingly wider range. That reflects the real size of the postal code, not a weaker calculation.
- This is a straight-line distance. Actual road distance is always longer, typically by a fifth to a third depending on the roads and terrain in between - never treat this figure as a driving distance or a drive-time estimate.
- A small number of postal codes have address records too scattered to place with a reliable centroid. Rather than guess, this tool refuses to give a distance for those and says why.
How It Works
- Two codes - enter two Canadian postal codes and calculate the distance between them, drawn on the map
- A list - paste several postal codes, one per line, for a full distance matrix
- Read the range - not just the number: the honest bound the address data behind each code actually supports
- Export - the matrix mode's CSV carries every pair's own range, with attribution
Who Uses This Tool?
Get a straight-line sense of how far apart a set of drop-off points really are before routing them.
Compare candidate locations by distance from a depot, office, or customer base.
Build a distance matrix across a list of postal codes for sales or service territory work.
Get a quick, honest distance estimate without needing exact street addresses.
Frequently Asked Questions
Why is the distance a range instead of a single number?
A postal code covers an area, not one point - the figure this tool starts from is the straight-line distance between two centroids (the average position of every address on record for each code), not between two specific addresses. Each code's own address records span a real, measured distance from its centroid - sometimes a few metres, sometimes several kilometres. Two specific addresses inside those codes could genuinely be closer together or further apart than the centroid distance suggests, up to that measured spread on each side. Printing one decimal number would claim a precision the data doesn't have; the range states the real bound instead.
Why will the actual road distance be longer?
This tool measures straight-line ("as the crow flies") distance only - there is no routing engine behind it. Roads bend around terrain, water, and property lines, so a real driving route is essentially always longer than the straight line between two points, typically by a fifth to a third depending on the terrain and road layout in between. Treat the figure here as a lower bound for planning, not a driving-time estimate.
What is a Canadian postal code, and what isn't it?
A Canadian postal code identifies a delivery area, which can be a single building in a dense downtown core or a wide rural district covering many kilometres - it is not itself an address, and it does not correspond to one physical point. This tool's centroid for each code is the mean position of every real address on record for it, which is the most honest single point available, but it is a summary of an area, not a location.
Why does a rural postal code widen the range so much?
Rural postal codes (second character zero) cover far more ground per code than urban ones - a single rural code can span many kilometres between the addresses that share it, where a downtown code might cover one building. Since the range this tool states is built directly from each code's own measured address spread, a rural code on either side of a pair widens the honest range accordingly. That's the size of the postal code, not an error in the calculation.
What does it mean if a postal code returns no result?
This tool gives the real reason rather than a generic "not found". A postal code with no address on record is usually a PO box, postal station, or general delivery code - a delivery destination, not a physical place, so it has no coordinates to measure from. A small number of other codes have address records too scattered to place with a reliable centroid; this tool refuses to guess a distance for those rather than produce a number it cannot stand behind.
Where does this data come from?
Statistics Canada's National Address Register (catalogue 46-26-0002), vintage June 2026, used under the Statistics Canada Open Licence. Each postal code's centroid and address spread are built from the same filtered address data as this site's other Canadian tools - PO box, postal station, and general delivery records excluded before the centroid was taken. Full attribution and licence details are on the credits page.
Related
- Postal Code Radius Search - every postal code within a set distance, not just the distance between two
- Nearest Postal Codes - the closest postal codes to a location, ranked by distance
- Postal Code and Address Mapper - paste a list of postal codes or addresses and plot them all on a map
- Credits and data sources for the full Statistics Canada attribution and licence text