EPSG:31370 — BD72 / Belgian Lambert 72

Projected · Belgium - onshore

Export Formats

OGC WKT

PROJCS[
    "BD72 / Belgian Lambert 72",
    GEOGCS[
        "BD72",
        DATUM[
            "Reseau_National_Belge_1972",
            SPHEROID["International 1924",6378388,297],
            TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4313"]
    ],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["latitude_of_origin",90],
    PARAMETER["central_meridian",4.36748666666667],
    PARAMETER["standard_parallel_1",51.1666672333333],
    PARAMETER["standard_parallel_2",49.8333339],
    PARAMETER["false_easting",150000.013],
    PARAMETER["false_northing",5400088.438],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","31370"]
]

WKT2

PROJCRS[
    "BD72 / Belgian Lambert 72",
    BASEGEOGCRS[
        "BD72",
        DATUM[
            "Reseau National Belge 1972",
            ELLIPSOID[
                "International 1924",
                6378388,
                297,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7022]
            ],
            ID["EPSG",6313]
        ],
        ID["EPSG",4313]
    ],
    CONVERSION[
        "Belgian Lambert 72",
        METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],
        PARAMETER[
            "Latitude of false origin",
            90,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8821]
        ],
        PARAMETER[
            "Longitude of false origin",
            4.36748666666694,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8822]
        ],
        PARAMETER[
            "Latitude of 1st standard parallel",
            51.1666672333336,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Latitude of 2nd standard parallel",
            49.8333339000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8824]
        ],
        PARAMETER[
            "Easting at false origin",
            150000.013,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8826]
        ],
        PARAMETER[
            "Northing at false origin",
            5400088.438,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8827]
        ],
        ID["EPSG",19961]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",31370]
]

PROJ.4

+proj=lcc +lat_0=90 +lon_0=4.36748666666667 +lat_1=51.1666672333333 +lat_2=49.8333339 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:31370", "+proj=lcc +lat_0=90 +lon_0=4.36748666666667 +lat_1=51.1666672333333 +lat_2=49.8333339 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 31370,
  "name": "BD72 / Belgian Lambert 72",
  "kind": "projected",
  "area": "Belgium - onshore",
  "unit": "metre",
  "bbox": [
    49.5,
    2.5,
    51.51,
    6.4
  ],
  "proj4": "+proj=lcc +lat_0=90 +lon_0=4.36748666666667 +lat_1=51.1666672333333 +lat_2=49.8333339 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747 +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 (31370, 'EPSG', 31370, '+proj=lcc +lat_0=90 +lon_0=4.36748666666667 +lat_1=51.1666672333333 +lat_2=49.8333339 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747 +units=m +no_defs +type=crs', 'PROJCS["BD72 / Belgian Lambert 72",GEOGCS["BD72",DATUM["Reseau_National_Belge_1972",SPHEROID["International 1924",6378388,297],TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4313"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",4.36748666666667],PARAMETER["standard_parallel_1",51.1666672333333],PARAMETER["standard_parallel_2",49.8333339],PARAMETER["false_easting",150000.013],PARAMETER["false_northing",5400088.438],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","31370"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=lcc"
  "+lat_0=90"
  "+lon_0=4.36748666666667"
  "+lat_1=51.1666672333333"
  "+lat_2=49.8333339"
  "+x_0=150000.013"
  "+y_0=5400088.438"
  "+ellps=intl"
  "+towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

31370=PROJCS["BD72 / Belgian Lambert 72",GEOGCS["BD72",DATUM["Reseau_National_Belge_1972",SPHEROID["International 1924",6378388,297],TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4313"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",4.36748666666667],PARAMETER["standard_parallel_1",51.1666672333333],PARAMETER["standard_parallel_2",49.8333339],PARAMETER["false_easting",150000.013],PARAMETER["false_northing",5400088.438],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","31370"]]

Related Coordinate Systems

Available Transformations (8)

Transformations inherited from base CRS: EPSG:4313 (BD72)

Transformation	Source → Target	Accuracy (m)
BD72 to ETRS89-BEL [BEREF2011] (3)	4313 → 11215	0.01
BD72 to ETRS89-BEL [BEREF2002] (2)	4313 → 11063	0.2
BD72 to WGS 84 (1)	4313 → 4326	1
BD72 to ETRS89-BEL [BEREF2002] (1)	4313 → 11063	1
BD72 to WGS 84 (3)	4313 → 4326	1
BD72 to WGS 84 (2)	4313 → 4326	5
BD72 to ETRS89 (2) Deprecated	4313 → 4258	0.2
BD72 to WGS 84 (3) Deprecated	4313 → 4326	0.2

Other CRS using Reseau National Belge 1972

Frequently Asked Questions

How do I add EPSG:31370 to GeoServer?

Add the following definition to your GeoServer configuration:

31370=PROJCS["BD72 / Belgian Lambert 72",GEOGCS["BD72",DATUM["Reseau_National_Belge_1972",SPHEROID["International 1924",6378388,297],TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4313"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",4.36748666666667],PARAMETER["standard_parallel_1",51.1666672333333],PARAMETER["standard_parallel_2",49.8333339],PARAMETER["false_easting",150000.013],PARAMETER["false_northing",5400088.438],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","31370"]]

Read the full GeoServer guide →

How do I add EPSG:31370 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (31370, 'EPSG', 31370, '+proj=lcc +lat_0=90 +lon_0=4.36748666666667 +lat_1=51.1666672333333 +lat_2=49.8333339 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747 +units=m +no_defs +type=crs', 'PROJCS["BD72 / Belgian Lambert 72",GEOGCS["BD72",DATUM["Reseau_National_Belge_1972",SPHEROID["International 1924",6378388,297],TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4313"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",4.36748666666667],PARAMETER["standard_parallel_1",51.1666672333333],PARAMETER["standard_parallel_2",49.8333339],PARAMETER["false_easting",150000.013],PARAMETER["false_northing",5400088.438],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","31370"]]');

Read the full PostGIS guide →

How do I add EPSG:31370 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=lcc"
  "+lat_0=90"
  "+lon_0=4.36748666666667"
  "+lat_1=51.1666672333333"
  "+lat_2=49.8333339"
  "+x_0=150000.013"
  "+y_0=5400088.438"
  "+ellps=intl"
  "+towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:31370 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:31370", "+proj=lcc +lat_0=90 +lon_0=4.36748666666667 +lat_1=51.1666672333333 +lat_2=49.8333339 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,-1.2747 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

BD72

Datum

Reseau National Belge 1972

Ellipsoid

International 1924

Prime Meridian

Greenwich

Area of Use

Belgium - onshore

Belgium - onshore.

Coordinate System

Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Center Coordinates

155822.20 132723.18

Projected Bounds

246456.18 14697.30291071.84 22635.80

WGS84 Bounds

51.51 2.506.40 49.50

Data Source

EPSG

Information Source

IGN Brussels; www.ngi.be/

Revision Date

2021-06-17

Scope

Engineering survey, topographic mapping.

Remarks

Introduced in 2000 as an alternative to CRS code 31300 to avoid the special projection method LCC (2SP Belgium) (code 9803). If software cannot handle latitude of origin 90°N, use latitude of origin = 50°47'57.704"N with Nf = 165372.956 m.

EPSG

31370