Understanding the Haversine Formula
The Haversine formula calculates distances between two points on the Earth. Here is how it works and how we use it across Postcodes UK.
Read MoreWhat Is a Centroid and How Do We Use Them?
Centroids are the geographic centre points we use to plot postcodes, towns and counties on maps. Here is how they work and why they matter.
Read MoreIntroducing Postcodes UK
A new free resource for exploring UK postcodes, cities, towns and villages. Find out what we offer and how we can help.
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