EPSG:9794 — ETRS89-FRA [RGF93 v2b] / Lambert-93

Projected · France

Export Formats

OGC WKT

PROJCS[
    "RGF93 v2b / Lambert-93",
    GEOGCS[
        "RGF93 v2b",
        DATUM[
            "Reseau_Geodesique_Francais_1993_v2b",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","9782"]
    ],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["latitude_of_origin",46.5],
    PARAMETER["central_meridian",3],
    PARAMETER["standard_parallel_1",49],
    PARAMETER["standard_parallel_2",44],
    PARAMETER["false_easting",700000],
    PARAMETER["false_northing",6600000],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","9794"]
]

WKT2

PROJCRS[
    "ETRS89-FRA [RGF93 v2b] / Lambert-93",
    BASEGEOGCRS[
        "ETRS89-FRA [RGF93 v2b]",
        DATUM[
            "Reseau Geodesique Francais 1993 v2b",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ANCHOREPOCH[2019],
            ID["EPSG",1313]
        ],
        ID["EPSG",9782]
    ],
    CONVERSION[
        "Lambert-93",
        METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],
        PARAMETER[
            "Latitude of false origin",
            46.5000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8821]
        ],
        PARAMETER[
            "Longitude of false origin",
            3,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8822]
        ],
        PARAMETER[
            "Latitude of 1st standard parallel",
            49,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Latitude of 2nd standard parallel",
            44,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8824]
        ],
        PARAMETER[
            "Easting at false origin",
            700000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8826]
        ],
        PARAMETER[
            "Northing at false origin",
            6600000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8827]
        ],
        ID["EPSG",18085]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",9794]
]

PROJ.4

+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:9794", "+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 9794,
  "name": "ETRS89-FRA [RGF93 v2b] / Lambert-93",
  "kind": "projected",
  "area": "France",
  "unit": "metre",
  "bbox": [
    41.15,
    -9.86,
    51.56,
    10.38
  ],
  "proj4": "+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +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 (9794, 'EPSG', 9794, '+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["RGF93 v2b / Lambert-93",GEOGCS["RGF93 v2b",DATUM["Reseau_Geodesique_Francais_1993_v2b",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9782"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",46.5],PARAMETER["central_meridian",3],PARAMETER["standard_parallel_1",49],PARAMETER["standard_parallel_2",44],PARAMETER["false_easting",700000],PARAMETER["false_northing",6600000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9794"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=lcc"
  "+lat_0=46.5"
  "+lon_0=3"
  "+lat_1=49"
  "+lat_2=44"
  "+x_0=700000"
  "+y_0=6600000"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

9794=PROJCS["RGF93 v2b / Lambert-93",GEOGCS["RGF93 v2b",DATUM["Reseau_Geodesique_Francais_1993_v2b",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9782"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",46.5],PARAMETER["central_meridian",3],PARAMETER["standard_parallel_1",49],PARAMETER["standard_parallel_2",44],PARAMETER["false_easting",700000],PARAMETER["false_northing",6600000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9794"]]

Related Coordinate Systems

Available Transformations (5)

Transformations inherited from base CRS: EPSG:9782 (ETRS89-FRA [RGF93 v2b])

Transformation	Source → Target	Accuracy (m)
ETRS89-FRA [RGF93 v2] to ETRS89-FRA [RGF93 v2b]	9777 → 9782	0.005
ETRS89-FRA [RGF93 v2b] to WGS 84 (1)	9782 → 4326	1
ETRS89-FRA [RGF93 v2b] to NTF (2)	9782 → 4275	1
NTF to ETRS89-FRA [RGF93 v2b] (1)	4275 → 9782	1
RGF93 v2b to ETRS89 (1) Deprecated	9782 → 4258	0.01

Other CRS for FR (17)

Other CRS using Reseau Geodesique Francais 1993 v2b (14)

Frequently Asked Questions

How do I add EPSG:9794 to GeoServer?

Add the following definition to your GeoServer configuration:

9794=PROJCS["RGF93 v2b / Lambert-93",GEOGCS["RGF93 v2b",DATUM["Reseau_Geodesique_Francais_1993_v2b",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9782"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",46.5],PARAMETER["central_meridian",3],PARAMETER["standard_parallel_1",49],PARAMETER["standard_parallel_2",44],PARAMETER["false_easting",700000],PARAMETER["false_northing",6600000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9794"]]

Read the full GeoServer guide →

How do I add EPSG:9794 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9794, 'EPSG', 9794, '+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["RGF93 v2b / Lambert-93",GEOGCS["RGF93 v2b",DATUM["Reseau_Geodesique_Francais_1993_v2b",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9782"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",46.5],PARAMETER["central_meridian",3],PARAMETER["standard_parallel_1",49],PARAMETER["standard_parallel_2",44],PARAMETER["false_easting",700000],PARAMETER["false_northing",6600000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9794"]]');

Read the full PostGIS guide →

How do I add EPSG:9794 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=lcc"
  "+lat_0=46.5"
  "+lon_0=3"
  "+lat_1=49"
  "+lat_2=44"
  "+x_0=700000"
  "+y_0=6600000"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:9794 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:9794", "+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →