• ETRS89 to Belfast height (1)

  EPSG:5334
  Area of use: United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• Belfast height to Malin Head height (1)

  EPSG:5452
  Area of use: United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• Irish National Grid

  EPSG:19973
  Area of use: United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• ETRS89 to Foula height (1)

  EPSG:10026
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Foula onshore.
  

• TM75 to ETRS89 (1)

  EPSG:1041
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• TM75 to WGS 84 (1)

  EPSG:1042
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• TM75 to ETRS89 (3)

  EPSG:6946
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• TM75 to WGS 84 (4)

  EPSG:6947
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• ETRS89 to ODN Orkney height (2)

  EPSG:7712
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Orkney Islands onshore.
  

• ETRS89 to Lerwick height (2)

  EPSG:7714
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Shetland Islands onshore.
  

• ETRS89 to Stornoway height (2)

  EPSG:7715
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Outer Hebrides onshore.
  

• ETRS89 to Malin Head height (2)

  EPSG:7959
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• Poolbeg height (m) to Malin Head height (1)

  EPSG:7964
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• Poolbeg height (ft(Br36)) to Malin Head height (1)

  EPSG:7965
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• ETRS89 to ETRS89 + Stornoway height (2)

  EPSG:9584
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Outer Hebrides onshore.
  

• ETRS89 to ETRS89 + ODN Orkney height (2)

  EPSG:9586
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Orkney Islands onshore.
  

• ETRS89 to ETRS89 + Lerwick height (2)

  EPSG:9589
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Shetland Islands onshore.
  

• ETRS89 to ETRS89 + Malin Head height (2)

  EPSG:9591
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• ETRS89 to BI height (3)

  EPSG:9918
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

• ETRS89 to ETRS89 + BI height (3)

  EPSG:9919
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  

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