How It Works
Each UK postcode is mapped to a latitude and longitude centroid. The calculator uses the Haversine formula to compute the great-circle distance between the two points on the Earth's surface.
UK Postcode Distance Calculator
Calculate the straight-line distance between two UK postcodes in miles and kilometres using latitude and longitude.
Location 1
Location 2
Unit
Straight-line distance
This calculator uses the Haversine formula to compute the great-circle distance between two points on the Earth's surface. The result is the shortest path over the surface, not a driving or walking route.
Finding coordinates
You can find the latitude and longitude for any UK postcode using Google Maps, Ordnance Survey, or a postcode-to-coordinate lookup tool.
Also in Vehicles
Transport
UK Postcode Distance Calculator
Find the straight-line (as-the-crow-flies) distance between two UK postcodes in both miles and kilometres.
Straight-Line vs Driving Distance
This tool gives the direct distance, not a driving route. Actual road distance is typically 20 to 40% longer depending on road layout and terrain.
Frequently asked questions
All standard UK postcode districts (outcode areas) are supported with averaged centroid coordinates.
Accuracy is within a few miles for most postcodes. Full postcodes resolve to district centroids, so very short distances may have higher relative error.
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