• Unknown datum based upon the GRS 1980 ellipsoid

  EPSG:4019
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Helmert 1906 ellipsoid

  EPSG:4020
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Indonesian National Spheroid

  EPSG:4021
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the International 1924 ellipsoid

  EPSG:4022
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Krassowsky 1940 ellipsoid

  EPSG:4024
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the NWL 9D ellipsoid

  EPSG:4025
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Plessis 1817 ellipsoid

  EPSG:4027
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Struve 1860 ellipsoid

  EPSG:4028
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the War Office ellipsoid

  EPSG:4029
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the WGS 84 ellipsoid

  EPSG:4030
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the GEM 10C ellipsoid

  EPSG:4031
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the OSU86F ellipsoid

  EPSG:4032
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the OSU91A ellipsoid

  EPSG:4033
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Clarke 1880 ellipsoid

  EPSG:4034
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Authalic Sphere

  EPSG:4035
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the GRS 1967 ellipsoid

  EPSG:4036
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Average Terrestrial System 1977 ellipsoid

  EPSG:4041
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Everest (1830 Definition) ellipsoid

  EPSG:4042
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the WGS 72 ellipsoid

  EPSG:4043
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Everest 1830 (1962 Definition) ellipsoid

  EPSG:4044
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unknown datum based upon the Everest 1830 (1975 Definition) ellipsoid

  EPSG:4045
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unspecified datum based upon the GRS 1980 Authalic Sphere

  EPSG:4047
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unspecified datum based upon the Clarke 1866 Authalic Sphere

  EPSG:4052
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unspecified datum based upon the International 1924 Authalic Sphere

  EPSG:4053
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Unspecified datum based upon the Hughes 1980 ellipsoid

  EPSG:4054
  Area of use: Not specified.
  Transform coordinates | Get position on a map

• Samboja

  EPSG:4125
  Area of use: Indonesia - east Kalimantan - Mahakam delta coastal and offshore shelf areas.
  Transform coordinates | Get position on a map

• LKS94 (ETRS89)

  EPSG:4126
  Area of use: Lithuania - onshore and offshore.
  Transform coordinates | Get position on a map

• NAD83(CSRS98)

  EPSG:4140
  Area of use: Canada - Alberta; New Brunswick; Saskatchewan; Prince Edward Island; and Quebec.
  Transform coordinates | Get position on a map

• POSGAR

  EPSG:4172
  Area of use: Argentina - onshore and offshore.
  Transform coordinates | Get position on a map

• Madeira 1936

  EPSG:4185
  Area of use: Portugal - Madeira, Porto Santo and Desertas islands - onshore.
  Transform coordinates | Get position on a map

• Cote d'Ivoire

  EPSG:4226
  Area of use: Côte d'Ivoire (Ivory Coast) - onshore and offshore.
  Transform coordinates | Get position on a map

• Douala

  EPSG:4228
  Area of use: Cameroon - onshore and offshore.
  Transform coordinates | Get position on a map

• Gandajika 1970

  EPSG:4233
  Area of use: Maldives - onshore and offshore.
  Transform coordinates | Get position on a map

• Garoua

  EPSG:4234
  Area of use: Cameroon - onshore and offshore.
  Transform coordinates | Get position on a map

• Guyane Francaise

  EPSG:4235
  Area of use: French Guiana - onshore and offshore.
  Transform coordinates | Get position on a map

• Manoca

  EPSG:4260
  Area of use: Cameroon - onshore and offshore.
  Transform coordinates | Get position on a map

• Mhast

  EPSG:4264
  Area of use: Angola - Cabinda.
  Transform coordinates | Get position on a map

• NAD27 Michigan

  EPSG:4268
  Area of use: United States (USA) - Michigan.
  Transform coordinates | Get position on a map

• Padang

  EPSG:4280
  Area of use: Indonesia - Sumatra.
  Transform coordinates | Get position on a map

• Qornoq

  EPSG:4287
  Area of use: Greenland - onshore and offshore.
  Transform coordinates | Get position on a map

• Search valid (832)

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Type of results

• Coordinate reference systems (10460)

•    Projected (7833)
•    Geodetic (1354)
•    Geodetic 3D (280)
•    Geocentric (244)
•    Vertical (280)
•    Engineering (28)
•    Compound (437)
•    Derived (4)

• Operation (43)

•    Transformation (41)
•    Conversion (2)

• Datum (15)

•    Vertical (14)
•    Engineering (1)

• Area (14)