Coordinate Reference Systems used in France
France's official projected CRS is RGF93 / Lambert-93 (EPSG:2154), adopted by IGN in 2000 and used for all current national mapping, the cadastre and public datasets on data.gouv.fr. The legacy four-zone Lambert Carto system (EPSG:27561-27564) and Lambert II Étendu (EPSG:27572) are retained for historical compatibility. RGF93 (EPSG:4171) is aligned with ETRS89, so transformations to/from WGS 84 are accurate to a few centimetres without grid shifts.
Most commonly used in France
Geographic (2D) (9)
Projected (40)
- 2154RGF93 v1 / Lambert-93
- 3942RGF93 v1 / CC42
- 3943RGF93 v1 / CC43
- 3944RGF93 v1 / CC44
- 3945RGF93 v1 / CC45
- 3946RGF93 v1 / CC46
- 3947RGF93 v1 / CC47
- 3948RGF93 v1 / CC48
- 3949RGF93 v1 / CC49
- 3950RGF93 v1 / CC50
- 5627ED50 / TM 6 NE
- 9793RGF93 v2 / Lambert-93
- 9794RGF93 v2b / Lambert-93
- 9822RGF93 v2 / CC42
- 9823RGF93 v2 / CC43
- 9824RGF93 v2 / CC44
- 9825RGF93 v2 / CC45
- 9826RGF93 v2 / CC46
- 9827RGF93 v2 / CC47
- 9828RGF93 v2 / CC48
- 9829RGF93 v2 / CC49
- 9830RGF93 v2 / CC50
- 9842RGF93 v2b / CC42
- 9843RGF93 v2b / CC43
- 9844RGF93 v2b / CC44
- 9845RGF93 v2b / CC45
- 9846RGF93 v2b / CC46
- 9847RGF93 v2b / CC47
- 9848RGF93 v2b / CC48
- 9849RGF93 v2b / CC49
- 9850RGF93 v2b / CC50
- 27500ATF (Paris) / Nord de Guerre
- 27561NTF (Paris) / Lambert Nord France
- 27562NTF (Paris) / Lambert Centre France
- 27563NTF (Paris) / Lambert Sud France
- 27564NTF (Paris) / Lambert Corse
- 27571NTF (Paris) / Lambert zone I
- 27572NTF (Paris) / Lambert zone II
- 27573NTF (Paris) / Lambert zone III
- 27574NTF (Paris) / Lambert zone IV
Geographic (3D) (6)
Geocentric (3)
Compound (16)
- 5698RGF93 v1 / Lambert-93 + NGF-IGN69 height
- 5699RGF93 v1 / Lambert-93 + NGF-IGN78 height
- 5707NTF (Paris) / Lambert zone I + NGF-IGN69 height
- 5708NTF (Paris) / Lambert zone IV + NGF-IGN78 height
- 7400NTF (Paris) + NGF-IGN69 height
- 7411NTF (Paris) / Lambert zone II + NGF Lallemand height
- 7421NTF (Paris) / Lambert zone II + NGF-IGN69 height
- 7422NTF (Paris) / Lambert zone III + NGF-IGN69 height
- 9538RGF93 v2 + NGF-IGN69 height
- 9539RGF93 v2 + NGF-IGN78 height
- 9785RGF93 v2b + NGF-IGN69 height
- 10497RGF93 v2 / Lambert-93 + NGF-IGN69 height
- 10498RGF93 v2 / Lambert-93 + NGF-IGN78 height
- 10499RGF93 v2b / Lambert-93 + NGF-IGN69 height
- 10500RGF93 v2b / Lambert-93 + NGF-IGN78 height
- 10507RGF93 v2b + NGF-IGN78 height