• Belfast height

  EPSG:5732
  Area of use: United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89-IRE [ETRF2000] + Belfast height

  EPSG:12230
  Area of use: United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89 + Belfast height

  EPSG:9450
  Area of use: United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• Xrail84 / London Survey Grid TM

  EPSG:10995
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• Xrail84

  EPSG:10992
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• Xrail84

  EPSG:10993
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• Foula height

  EPSG:5743
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Foula onshore.
  Transform coordinates | Get position on a map

• London Survey Grid height

  EPSG:10989
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• Xrail84

  EPSG:10991
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• ETRS89-GBR [OSNet v2009] + London Survey Grid height

  EPSG:10997
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• London Survey Grid 2025

  EPSG:11006
  Area of use: United Kingdom (UK) - Greater London and surrounding area.
  Transform coordinates | Get position on a map

• ETRS89-IRE [ETRF2000]

  EPSG:4943
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89-IRE [ETRF2000]

  EPSG:4173
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89-IRE [ETRF2000]

  EPSG:4942
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• Malin Head height

  EPSG:5731
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ODN Orkney height

  EPSG:5740
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Orkney Islands onshore.
  Transform coordinates | Get position on a map

• Fair Isle height

  EPSG:5741
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Fair Isle onshore.
  Transform coordinates | Get position on a map

• Lerwick height

  EPSG:5742
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Shetland Islands onshore.
  Transform coordinates | Get position on a map

• Sule Skerry height

  EPSG:5744
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Sule Skerry onshore.
  Transform coordinates | Get position on a map

• North Rona height

  EPSG:5745
  Area of use: United Kingdom (UK) - Great Britain - Scotland - North Rona onshore.
  Transform coordinates | Get position on a map

• Stornoway height

  EPSG:5746
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Outer Hebrides onshore.
  Transform coordinates | Get position on a map

• St. Kilda height

  EPSG:5747
  Area of use: United Kingdom (UK) - Great Britain - Scotland - St Kilda onshore.
  Transform coordinates | Get position on a map

• Flannan Isles height

  EPSG:5748
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Flannan Isles onshore.
  Transform coordinates | Get position on a map

• Poolbeg height (ft(Br36))

  EPSG:5754
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89-GBR [OSNet v2009] + Lerwick height

  EPSG:11511
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Shetland Islands onshore.
  Transform coordinates | Get position on a map

• ETRS89-GBR [OSNet v2009] + ODN Orkney height

  EPSG:11820
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Orkney Islands onshore.
  Transform coordinates | Get position on a map

• ETRS89-GBR [OSNet v2009] + Stornoway height

  EPSG:11822
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Outer Hebrides onshore.
  Transform coordinates | Get position on a map

• ETRS89-IRE [ETRF2000] + Malin Head height

  EPSG:12229
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• Poolbeg height (m)

  EPSG:7962
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89 + ODN Orkney height

  EPSG:9426
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Orkney Islands onshore.
  Transform coordinates | Get position on a map

• ETRS89 + Lerwick height

  EPSG:9427
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Shetland Islands onshore.
  Transform coordinates | Get position on a map

• ETRS89 + Stornoway height

  EPSG:9428
  Area of use: United Kingdom (UK) - Great Britain - Scotland - Outer Hebrides onshore.
  Transform coordinates | Get position on a map

• ETRS89 + Malin Head height

  EPSG:9449
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• ETRS89 / ITM + BI height

  EPSG:9922
  Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
  Transform coordinates | Get position on a map

• St. Marys height

  EPSG:5749
  Area of use: United Kingdom (UK) - Great Britain - England - Isles of Scilly onshore.
  Transform coordinates | Get position on a map

• ETRS89-GBR [OSNet v2009] + St. Marys height

  EPSG:11821
  Area of use: United Kingdom (UK) - Great Britain - England - Isles of Scilly onshore.
  Transform coordinates | Get position on a map

• ETRS89 + St. Marys height

  EPSG:9430
  Area of use: United Kingdom (UK) - Great Britain - England - Isles of Scilly onshore.
  Transform coordinates | Get position on a map

• OSGB36

  EPSG:4277 with transformation: 7710
  Area of use: United Kingdom (UK) (accuracy: 1.0)
  Transform coordinates | Get position on a map

• AbInvA96_2020 Grid

  EPSG:9387
  Area of use: United Kingdom (UK) - on or related to the A96 highway from Aberdeen to Inverness.
  Transform coordinates | Get position on a map

• ShAb07 Grid

  EPSG:10188
  Area of use: United Kingdom (UK) - on or related to the rail route from Shrewsbury to Aberystwyth.
  Transform coordinates | Get position on a map

• DIBA15 Grid

  EPSG:10207
  Area of use: United Kingdom (UK) - on or related to the rail route from Didcot to Banbury.
  Transform coordinates | Get position on a map

• OxWo08 Grid

  EPSG:10235
  Area of use: United Kingdom (UK) - on or related to the rail route from Oxford to Worcester.
  Transform coordinates | Get position on a map

• SYC20 Grid

  EPSG:10240
  Area of use: United Kingdom (UK) - on or related to the rail route from Shrewsbury to Crewe.
  Transform coordinates | Get position on a map

• SMITB20 Grid

  EPSG:10275
  Area of use: United Kingdom (UK) - on or related to the rail route from Okehampton to Penstone.
  Transform coordinates | Get position on a map

• OS(SN)80

  EPSG:4279
  Area of use: Ireland
  Transform coordinates | Get position on a map

• AbInvA96_2020-IRF

  EPSG:9384
  Area of use: United Kingdom (UK) - on or related to the A96 highway from Aberdeen to Inverness.
  Transform coordinates | Get position on a map

• ShAb07-IRF

  EPSG:10185
  Area of use: United Kingdom (UK) - on or related to the rail route from Shrewsbury to Aberystwyth.
  Transform coordinates | Get position on a map

• DIBA15-IRF

  EPSG:10204
  Area of use: United Kingdom (UK) - on or related to the rail route from Didcot to Banbury.
  Transform coordinates | Get position on a map

• OxWo08-IRF

  EPSG:10229
  Area of use: United Kingdom (UK) - on or related to the rail route from Oxford to Worcester.
  Transform coordinates | Get position on a map

• SYC20-IRF

  EPSG:10237
  Area of use: United Kingdom (UK) - on or related to the rail route from Shrewsbury to Crewe.
  Transform coordinates | Get position on a map

• SMITB20-IRF

  EPSG:10272
  Area of use: United Kingdom (UK) - on or related to the rail route from Okehampton to Penstone.
  Transform coordinates | Get position on a map

• DoPw22 Grid

  EPSG:10183
  Area of use: United Kingdom (UK) - on or related to the rail route from Dovey Junction to Pwllheli.
  Transform coordinates | Get position on a map

• GWPBS22 Grid

  EPSG:10212
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Paddington) to Swansea.
  Transform coordinates | Get position on a map

• GWWAB22 Grid

  EPSG:10217
  Area of use: United Kingdom (UK) - on or related to the rail routes around Cardiff and the valleys.
  Transform coordinates | Get position on a map

• AbInvA96_2020 Grid + ODN height

  EPSG:9388
  Area of use: United Kingdom (UK) - on or related to the A96 highway from Aberdeen to Inverness.
  Transform coordinates | Get position on a map

• ShAb07 Grid + ODN height

  EPSG:10189
  Area of use: United Kingdom (UK) - on or related to the rail route from Shrewsbury to Aberystwyth.
  Transform coordinates | Get position on a map

• DIBA15 Grid + ODN height

  EPSG:10208
  Area of use: United Kingdom (UK) - on or related to the rail route from Didcot to Banbury.
  Transform coordinates | Get position on a map

• OxWo08 Grid + ODN height

  EPSG:10236
  Area of use: United Kingdom (UK) - on or related to the rail route from Oxford to Worcester.
  Transform coordinates | Get position on a map

• SYC20 Grid + ODN height

  EPSG:10241
  Area of use: United Kingdom (UK) - on or related to the rail route from Shrewsbury to Crewe.
  Transform coordinates | Get position on a map

• SMITB20 Grid + ODN height

  EPSG:10276
  Area of use: United Kingdom (UK) - on or related to the rail route from Okehampton to Penstone.
  Transform coordinates | Get position on a map

• DoPw22-IRF

  EPSG:10175
  Area of use: United Kingdom (UK) - on or related to the rail route from Dovey Junction to Pwllheli.
  Transform coordinates | Get position on a map

• GWPBS22-IRF

  EPSG:10209
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Paddington) to Swansea.
  Transform coordinates | Get position on a map

• GWWAB22-IRF

  EPSG:10214
  Area of use: United Kingdom (UK) - on or related to the rail routes around Cardiff and the valleys.
  Transform coordinates | Get position on a map

• SZCTW Grid

  EPSG:11469
  Area of use: United Kingdom (UK) - Sizewell power station site and rail and road routes related to the site.
  Transform coordinates | Get position on a map

• MML07 Grid

  EPSG:9373
  Area of use: United Kingdom (UK) - on or related to the Midland Mainline rail route from Sheffield to London.
  Transform coordinates | Get position on a map

• FNL22 Grid

  EPSG:9977
  Area of use: United Kingdom (UK) - on or related to the rail route from Inverness to Thurso and Wick.
  Transform coordinates | Get position on a map

• CNH22 Grid

  EPSG:10194
  Area of use: United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead.
  Transform coordinates | Get position on a map

• MALS09 Grid

  EPSG:10227
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Marylebone) to Leamington Spa.
  Transform coordinates | Get position on a map

• RBEPP12 Grid

  EPSG:10280
  Area of use: United Kingdom (UK) - on or related to the rail route from Reading via Newbury to Penzance.
  Transform coordinates | Get position on a map

• ODN height

  EPSG:5701
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• ETRS89-GBR [OSNet v2009] + ODN height

  EPSG:11819
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• OSGB36 / British National Grid + ODN height

  EPSG:7405
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• ETRS89 + ODN height

  EPSG:9424
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• DoPw22 Grid + ODN height

  EPSG:10184
  Area of use: United Kingdom (UK) - on or related to the rail route from Dovey Junction to Pwllheli.
  Transform coordinates | Get position on a map

• GWPBS22 Grid + ODN height

  EPSG:10213
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Paddington) to Swansea.
  Transform coordinates | Get position on a map

• GWWAB22 Grid + ODN height

  EPSG:10218
  Area of use: United Kingdom (UK) - on or related to the rail routes around Cardiff and the valleys.
  Transform coordinates | Get position on a map

• SZCTW-IRF

  EPSG:11466
  Area of use: United Kingdom (UK) - Sizewell power station site and rail and road routes related to the site.
  Transform coordinates | Get position on a map

• MML07-IRF

  EPSG:9372
  Area of use: United Kingdom (UK) - on or related to the Midland Mainline rail route from Sheffield to London.
  Transform coordinates | Get position on a map

• FNL22-IRF

  EPSG:9974
  Area of use: United Kingdom (UK) - on or related to the rail route from Inverness to Thurso and Wick.
  Transform coordinates | Get position on a map

• CNH22-IRF

  EPSG:10191
  Area of use: United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead.
  Transform coordinates | Get position on a map

• MALS09-IRF

  EPSG:10224
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Marylebone) to Leamington Spa.
  Transform coordinates | Get position on a map

• RBEPP12-IRF

  EPSG:10277
  Area of use: United Kingdom (UK) - on or related to the rail route from Reading via Newbury to Penzance.
  Transform coordinates | Get position on a map

• HS2 Survey Grid

  EPSG:9300
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• EBBWV14 Grid

  EPSG:9943
  Area of use: United Kingdom (UK) - on or related to the rail route from Newport (Park Junction) to Ebbw Vale.
  Transform coordinates | Get position on a map

• CWS13 Grid

  EPSG:10199
  Area of use: United Kingdom (UK) - on or related to the rail route from from Chester via Wrexham to Shrewsbury.
  Transform coordinates | Get position on a map

• SZCTW Grid + ODN height

  EPSG:11470
  Area of use: United Kingdom (UK) - Sizewell power station site and rail and road routes related to the site.
  Transform coordinates | Get position on a map

• MML07 Grid + ODN height

  EPSG:9374
  Area of use: United Kingdom (UK) - on or related to the Midland Mainline rail route from Sheffield to London.
  Transform coordinates | Get position on a map

• FNL22 Grid + ODN height

  EPSG:9978
  Area of use: United Kingdom (UK) - on or related to the rail route from Inverness to Thurso and Wick.
  Transform coordinates | Get position on a map

• CNH22 Grid + ODN height

  EPSG:10195
  Area of use: United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead.
  Transform coordinates | Get position on a map

• MALS09 Grid + ODN height

  EPSG:10228
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Marylebone) to Leamington Spa.
  Transform coordinates | Get position on a map

• RBEPP12 Grid + ODN height

  EPSG:10281
  Area of use: United Kingdom (UK) - on or related to the rail route from Reading via Newbury to Penzance.
  Transform coordinates | Get position on a map

• HS2-IRF

  EPSG:9299
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• EBBWV14-IRF

  EPSG:9939
  Area of use: United Kingdom (UK) - on or related to the rail route from Newport (Park Junction) to Ebbw Vale.
  Transform coordinates | Get position on a map

• CWS13-IRF

  EPSG:10196
  Area of use: United Kingdom (UK) - on or related to the rail route from from Chester via Wrexham to Shrewsbury.
  Transform coordinates | Get position on a map

• MWC18 Grid

  EPSG:20002
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• HULLEE13 Grid

  EPSG:9967
  Area of use: United Kingdom (UK) - on or related to the rail route from the Morley tunnel through Leeds to Hull.
  Transform coordinates | Get position on a map

• COV23 Grid

  EPSG:10471
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• HS2-VRF height

  EPSG:9303
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• HS2 Survey Grid + HS2-VRF height

  EPSG:9306
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• EBBWV14 Grid + ODN height

  EPSG:9944
  Area of use: United Kingdom (UK) - on or related to the rail route from Newport (Park Junction) to Ebbw Vale.
  Transform coordinates | Get position on a map

• CWS13 Grid + ODN height

  EPSG:10200
  Area of use: United Kingdom (UK) - on or related to the rail route from from Chester via Wrexham to Shrewsbury.
  Transform coordinates | Get position on a map

• MWC18-IRF

  EPSG:20033
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• HULLEE13-IRF

  EPSG:9964
  Area of use: United Kingdom (UK) - on or related to the rail route from the Morley tunnel through Leeds to Hull.
  Transform coordinates | Get position on a map

• COV23-IRF

  EPSG:10468
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• GWWWA22 Grid

  EPSG:10222
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• MWC18 Grid + ODN height

  EPSG:20003
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• HULLEE13 Grid + ODN height

  EPSG:9968
  Area of use: United Kingdom (UK) - on or related to the rail route from the Morley tunnel through Leeds to Hull.
  Transform coordinates | Get position on a map

• COV23 Grid + ODN height

  EPSG:10472
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• WC05 Grid

  EPSG:10632
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• WSPG Grid

  EPSG:10863
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• TPEN11 Grid

  EPSG:9367
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• GWWWA22-IRF

  EPSG:10219
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• GWWWA22 Grid + ODN height

  EPSG:10223
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• ECML14 Grid

  EPSG:10626
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• MRH21 Grid

  EPSG:9869
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• SCM22 Grid

  EPSG:9972
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• WC05-IRF

  EPSG:10628
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• WSPG-IRF

  EPSG:10860
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• TPEN11-IRF

  EPSG:9364
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• WSPG Grid + ODN height

  EPSG:10864
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• TPEN11 Grid + ODN height

  EPSG:9368
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• GBK19 Grid

  EPSG:9456
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• MOLDOR11 Grid

  EPSG:9880
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• ECML14-IRF

  EPSG:10623
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• MRH21-IRF

  EPSG:9866
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• SCM22-IRF

  EPSG:9969
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• ECML14 Grid + ODN height

  EPSG:10627
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• MRH21 Grid + ODN height

  EPSG:9870
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• SCM22 Grid + ODN height

  EPSG:9973
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• GBK19-IRF

  EPSG:9453
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• Search deprecated (149)

• Prev
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• Next

Type of results

• Coordinate reference systems (491)

•    Projected (333)
•    Geodetic (54)
•    Geodetic 3D (8)
•    Geocentric (10)
•    Vertical (25)
•    Engineering (1)
•    Compound (60)

• Operation (205)

•    Transformation (156)
•    Compound (5)
•    Conversion (44)

• Datum (69)

•    Vertical (23)
•    Engineering (1)
•    Geodetic (43)
•    Ensemble (2)

• Area (77)