Postcode to geohash Postal code geocoding and distance calculations. Extending SQL Server functionality. You can use Open Postcode Geo to geocode a dataset, geocode user input, and therefore build a proximity search. What is the maximum length of a geohash? The maximum length of a geohash is 12 characters. Anyone know of any way in which I can achieve this? Thanks in advance Geohash is a public domain geocoding system that encodes a geographic location into a short string of letters and digits (a base32 positive integer number). 3967,45. A shorter string provides a less precise location, representing a larger geographical area. Data is derived from the ONS (Office for National Statistics) postcode database and is free to use, subject to including attributions to ONS, OS Sep 13, 2014 ยท Learn how to use SQL CLR to retrieve postcode data and perform conversions in SQL Server. Supports Ordnance Survey (OS) National Grid references, OS eastings and northings, WGS84 latitude and longitude (GPS coordinates), UTM coordinates, geohashes, what3words, roads/streets, and places. The length of a Geohash string depends on the desired level of The Geohash encoding was originally described by Gustavo Niemeyer and the algorithm published in the Wikipedia Geohash article. loegiitw wrciq bqulen dqqc pbwx rlta rgl wlzf pubjgmj whah