EPSG:4807 — NTF (Paris)

Geographic 2D · France - onshore - mainland and Corsica

Export Formats

WKT2

GEOGCRS[
    "NTF (Paris)",
    DATUM[
        "Nouvelle Triangulation Francaise (Paris)",
        ELLIPSOID[
            "Clarke 1880 (IGN)",
            6378249.2,
            293.466021293627,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7011]
        ],
        ID["EPSG",6807]
    ],
    PRIMEM[
        "Paris",
        0.040792344,
        ANGLEUNIT["radian",1,ID["EPSG",9101]],
        ID["EPSG",8903]
    ],
    CS[ellipsoidal,2,ID["EPSG",6403]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["grad",0.015707963267949,ID["EPSG",9105]],
    ID["EPSG",4807]
]

PROJ.4

+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4807", "+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4807,
  "name": "NTF (Paris)",
  "kind": "geographic 2D",
  "area": "France - onshore - mainland and Corsica",
  "unit": "grad",
  "bbox": [
    41.31,
    -4.87,
    51.14,
    9.63
  ],
  "proj4": "+proj=longlat +ellps=clrk80ign +pm=paris +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 (4807, 'EPSG', 4807, '+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs', '');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+ellps=clrk80ign"
  "+pm=paris"
  "+no_defs"
  "+type=crs"
END

Related Coordinate Systems

Available Transformations (10)

Transformation	Source → Target	Accuracy (m)
NTF (Paris) to NTF (1)	4807 → 4275	0
NTF (Paris) to NTF (2)	4807 → 4275	0
NTF (Paris) to ETRS89-FRA [RGF93 v1] (2)	4807 → 4171	1
NTF (Paris) to ETRS89-FRA [RGF93 v1] (1)	4807 → 4171	1
NTF (Paris) to WGS 84 (1)	4807 → 4326	2
NTF (Paris) to ED50 (1)	4807 → 4230	2
NTF (Paris) to WGS 72 (1)	4807 → 4322	2
NTF (Paris) to NTF (Greenwich) (1) Deprecated	4807 → 4275	—
NTF (Paris) to NTF (Greenwich) (2) Deprecated	4807 → 4275	—
NTF (Paris) to RGF93 (1) Deprecated	4807 → 4171	1

Other CRS using Nouvelle Triangulation Francaise (Paris)

Frequently Asked Questions

How do I add EPSG:4807 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4807, 'EPSG', 4807, '+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs', '');

Read the full PostGIS guide →

How do I add EPSG:4807 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+ellps=clrk80ign"
  "+pm=paris"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4807 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4807", "+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs");

Read the full Proj4js guide →