Examples in other pages of
documentation here are still using version 3 so are incompatible with
the updated demo map and app. The algorithm is the same but uses the
alphabet "6789B5NPQC4MXRD3LWTF2KJHG".
The code works at any level of precision. At eight characters it has an average offset of 0.58m. At seven characters it describes an area 5.98m by 4.6m. At six, an area 30m by 23m - perhaps an average postcode sized area. At five, an area 150m by 115m. At four, a small area .75km by .57km. At just three characters an area 3.7km by 2.9km. At two characters an area 19km by 14km. And finally the country is divided into a 5 by 5 grid of approximately 93km x 72km areas.
| Digits | Example | Checksum | Precision | Applications | | 9 | | | .24m x .18m | Precise geolocation functions. | | 8 | KFPX-WT7D | 5 | 1.2m x .9m (avg. offset ~0.58m) | Geolocation. Infrastructure (signage, fittings, poles, meters, etc.) | | 7 | KFPX-WT7 | U | 5.98m x 4.6m (avg. offset <3m) | Postcodes: individual buildings, entrances; infrastructure (bridges, junctions, etc.). | | 6 | KFPX-WT | P | 30m x 23m | Many sites and campuses. | | 5 | KFPXW | M | 150m x 115m | Larger campuses, street segments. | | 4 | KFPX | X | .75km x .57km | Neighbourhood areas. | | 3 | KFP | U | 3.7km x 2.9km | Small area statistics, rough/private address, service calculations. | | 2 | KF | 3 | 19km x 14km | General regions, statistical regions, marketing, etc. | | 1 | K | F | 93km x 72km | Coarser geographical statistics. | | | | | | Irregular regions can be described in terms of groups of postcodes of varying size. | | | International |
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| | 6 | N962-65 | J | 3.5m x 4.6m | Geolocation postcode for Hong Kong (example HSBC Tower). | | 7 | | | 0.7m x 0.9m | | | 10 | 942GC-7JD54 | W | 2m x 2.9m | World geolocation postcode (example Spire of Dublin). | | | 4WMXJ-P5CCG | G | 2m x 2.9m | International: Centre of the Öresundsbron/Øresundsbroen. | | 10 | bdrd5tb4Md | n | 0.33m x 0.47m | Global Geohash-36 (machine suitable code, base-36, case-sensitive). |
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