EPSG:31370 — BD72 / Belgian Lambert 72
Projected coordinate system · coordinates in metres · Belgium - onshore.
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To (this page’s CRS)
EPSG:31370BD72 / Belgian Lambert 72
Coordinates in EPSG:4326 — one pair per line
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Worked example — the centre of this system's area of use: 4.45, 50.505 (EPSG:4326 lon, lat) = 155,763.88, 132,693.38 (EPSG:31370).
EPSG:31370 details
TypeProjected CRS
DatumReseau National Belge 1972
Unitsmetre
AxesEasting (east) · Northing (north)
Projection methodLambert Conic Conformal (2SP)
ScopeEngineering survey, topographic mapping.
Base CRSEPSG:4313
Area of use
Belgium - onshore.
WGS84 bounds: 2.5° to 6.4° longitude, 49.5° to 51.51° latitude.
Well-known text (WKT2)
Show WKT2 definition for EPSG:31370
PROJCRS["BD72 / Belgian Lambert 72",BASEGEOGCRS["BD72",DATUM["Reseau National Belge 1972",ELLIPSOID["International 1924",6378388,297,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],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",8821]],PARAMETER["Longitude of false origin",4.36748666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude of 1st standard parallel",51.1666672333333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude of 2nd standard parallel",49.8333339,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting at false origin",150000.013,LENGTHUNIT["metre",1],ID["EPSG",8826]],PARAMETER["Northing at false origin",5400088.438,LENGTHUNIT["metre",1],ID["EPSG",8827]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["Belgium - onshore."],BBOX[49.5,2.5,51.51,6.4]],ID["EPSG",31370]]
Related coordinate systems
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Registry facts from the official EPSG dataset (v11.022) as distributed with PROJ. Conversions run in your browser via GDAL/PROJ WebAssembly.