EPSG:31370, BD72 / Belgian Lambert 72
Belgian Lambert 72, the national grid of Belgium on the BD72 datum and still the most common system in Belgian data. Its successor is Lambert 2008 (EPSG:3812).
Parameters
Read from the PROJ definition the converter above runs.
- Projection
- Lambert conformal conic
- Ellipsoid
- International 1924
- Shift to WGS 84
- 7 parameters
- Central meridian
- 4.367486667°
- Latitude of origin
- 90°
- Standard parallels
- 51.166667233°, 49.8333339°
- False easting
- 150,000.013 m
- False northing
- 5,400,088.438 m
- Units
- metres
PROJ definition
+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
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AI AgentFrequently asked questions
What is EPSG:31370?
Belgian Lambert 72, the national grid of Belgium on the BD72 datum and still the most common system in Belgian data. Its successor is Lambert 2008 (EPSG:3812).
What are the units and axis order of EPSG:31370?
Metres, counted from a false origin of 150,000.013 m east and 5,400,088.438 m north. Most GIS software writes easting first, then northing; check the order of your source data when a point lands in the wrong place.
How do I use EPSG:31370 in QGIS?
To show the map in it: Project > Properties > CRS, search 31370. To save a layer in it: right-click the layer, Export > Save Features As, and pick EPSG:31370. Set Layer CRS only labels a file whose system is missing; it does not move the data.
Is EPSG:31370 the same as WGS 84?
No. It sits on the International 1924 ellipsoid and needs a 7-parameter shift to reach WGS 84, which the converter applies. Skipping it moves points by tens to hundreds of metres.