• OSGB70

  EPSG:4278
  Area of use: United Kingdom (UK)
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• OSGB36 / British National Grid + BI height

  EPSG:9920
  Area of use: United Kingdom (UK)
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• BI height

  EPSG:9451
  Area of use: United Kingdom (UK)
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• ETRS89 + BI height

  EPSG:9452
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

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