EPSG:4240 — Indian 1975

Geographic 2D · Thailand - onshore and Gulf of Thailand

Export Formats

OGC WKT

GEOGCS[
    "Indian 1975",
    DATUM[
        "Indian_1975",
        SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],
        TOWGS84[293,836,318,0.5,1.6,-2.8,2.1]
    ],
    PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4240"]
]

WKT2

GEOGCRS[
    "Indian 1975",
    DATUM[
        "Indian 1975",
        ELLIPSOID[
            "Everest 1830 (1937 Adjustment)",
            6377276.345,
            300.8017,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7015]
        ],
        ID["EPSG",6240]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4240]
]

PROJ.4

+proj=longlat +ellps=evrst30 +towgs84=293,836,318,0.5,1.6,-2.8,2.1 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4240", "+proj=longlat +ellps=evrst30 +towgs84=293,836,318,0.5,1.6,-2.8,2.1 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4240,
  "name": "Indian 1975",
  "kind": "geographic 2D",
  "area": "Thailand - onshore and Gulf of Thailand",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    5.63,
    97.34,
    20.46,
    105.64
  ],
  "proj4": "+proj=longlat +ellps=evrst30 +towgs84=293,836,318,0.5,1.6,-2.8,2.1 +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4240, 'EPSG', 4240, '+proj=longlat +ellps=evrst30 +towgs84=293,836,318,0.5,1.6,-2.8,2.1 +no_defs +type=crs', 'GEOGCS["Indian 1975",DATUM["Indian_1975",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[293,836,318,0.5,1.6,-2.8,2.1]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4240"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+ellps=evrst30"
  "+towgs84=293,836,318,0.5,1.6,-2.8,2.1"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4240=GEOGCS["Indian 1975",DATUM["Indian_1975",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[293,836,318,0.5,1.6,-2.8,2.1]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4240"]]

Related Coordinate Systems

Available Transformations (4)

Transformation	Source → Target	Accuracy (m)
Indian 1975 to WGS 84 (3)	4240 → 4326	1
Indian 1975 to WGS 84 (4)	4240 → 4326	3
Indian 1975 to WGS 84 (1)	4240 → 4326	5
Indian 1975 to WGS 84 (2)	4240 → 4326	5

Other CRS using Indian 1975

Frequently Asked Questions

How do I add EPSG:4240 to GeoServer?

Add the following definition to your GeoServer configuration:

4240=GEOGCS["Indian 1975",DATUM["Indian_1975",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[293,836,318,0.5,1.6,-2.8,2.1]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4240"]]

Read the full GeoServer guide →

How do I add EPSG:4240 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4240, 'EPSG', 4240, '+proj=longlat +ellps=evrst30 +towgs84=293,836,318,0.5,1.6,-2.8,2.1 +no_defs +type=crs', 'GEOGCS["Indian 1975",DATUM["Indian_1975",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[293,836,318,0.5,1.6,-2.8,2.1]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4240"]]');

Read the full PostGIS guide →

How do I add EPSG:4240 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+ellps=evrst30"
  "+towgs84=293,836,318,0.5,1.6,-2.8,2.1"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4240 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4240", "+proj=longlat +ellps=evrst30 +towgs84=293,836,318,0.5,1.6,-2.8,2.1 +no_defs +type=crs");

Read the full Proj4js guide →