• OSGB36 / British National Grid + ODN height

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

• NAD83 / California zone 1 (ftUS) + NAVD88 height (ftUS)

  EPSG:8714
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Maine West (ftUS) + NAVD88 height (ftUS)

  EPSG:8746
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Nevada West (ftUS) + NAVD88 height (ftUS)

  EPSG:8758
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / New York Long Island (ftUS) + NAVD88 height (ftUS)

  EPSG:8767
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Utah North (ftUS) + NAVD88 height (ftUS)

  EPSG:8784
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Utah South (ftUS) + NAVD88 height (ftUS)

  EPSG:8786
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Wyoming East (ftUS) + NAVD88 height (ftUS)

  EPSG:8797
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Alaska zone 9 + NAVD88 height

  EPSG:8811
  Area of use: United States (USA) - Alaska onshore north of 54°30'N and west of 168°W.
  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

• ETRS89 + MSL UK & Ireland VORF08 depth

  EPSG:10156
  Area of use: Ireland and United Kingdom (UK) (including Isle of Man and Channel Islands)
  Transform coordinates | Get position on a map

• ETRS89 + CD UK & Ireland VORF08 depth

  EPSG:10157
  Area of use: Ireland and United Kingdom (UK) (including Isle of Man and Channel Islands)
  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

• NAD83 / California zone 5 (ftUS) + NAVD88 height (ftUS)

  EPSG:8718
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)

  EPSG:8723
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / New Mexico West (ftUS) + NAVD88 height (ftUS)

  EPSG:8763
  Area of use: United States (USA)
  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

• NAD83 / New Hampshire (ftUS) + NAVD88 height (ftUS)

  EPSG:8759
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / New York West (ftUS) + NAVD88 height (ftUS)

  EPSG:8766
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Alaska zone 8 + NAVD88 height

  EPSG:8810
  Area of use: United States (USA) - Alaska onshore north of 54°30'N and between 168°W and 164°W.
  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

• MWC18 Grid + ODN height

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

• NAD83 / Oregon South (ft) + NAVD88 height (ft)

  EPSG:8710
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Idaho Central (ftUS) + NAVD88 height (ftUS)

  EPSG:8731
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Wisconsin North (ftUS) + NAVD88 height (ftUS)

  EPSG:8794
  Area of use: United States (USA)
  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

• NAD83 / Massachusetts Mainland (ftUS) + NAVD88 height (ftUS)

  EPSG:8748
  Area of use: United States (USA)
  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

• WSPG Grid + ODN height

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

• NAD83 / Idaho East (ftUS) + NAVD88 height (ftUS)

  EPSG:8730
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Utah Central (ftUS) + NAVD88 height (ftUS)

  EPSG:8785
  Area of use: United States (USA)
  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

• ECML14 Grid + ODN height

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

• NAD83 / Vermont (ftUS) + NAVD88 height (ftUS)

  EPSG:8787
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• GBK19 Grid + ODN height

  EPSG:9457
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• MOLDOR11 Grid + ODN height

  EPSG:9881
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• NAD83 / Colorado North (ftUS) + NAVD88 height (ftUS)

  EPSG:8720
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Florida West (ftUS) + NAVD88 height (ftUS)

  EPSG:8727
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / New Mexico East (ftUS) + NAVD88 height (ftUS)

  EPSG:8761
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / New Mexico Central (ftUS) + NAVD88 height (ftUS)

  EPSG:8762
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• NAD83 / Texas South (ftUS) + NAVD88 height (ftUS)

  EPSG:8783
  Area of use: United States (USA)
  Transform coordinates | Get position on a map

• ETRS89 + ODN (Offshore) height

  EPSG:9425
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

• ECML14_NB Grid + ODN height

  EPSG:9762
  Area of use: United Kingdom (UK)
  Transform coordinates | Get position on a map

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Type of results

• Coordinate reference systems (2467)

•    Projected (2123)
•    Geodetic (85)
•    Geodetic 3D (23)
•    Geocentric (24)
•    Vertical (39)
•    Compound (173)

• Operation (1351)

•    Transformation (350)
•    Compound (104)
•    Point Motion (1)
•    Conversion (896)

• Datum (93)

•    Vertical (28)
•    Geodetic (63)
•    Ensemble (2)

• Area (682)