EPSG:2154 · Europe
France Lambert-93 to KML & KMZ
Convert France Lambert-93 eastings and northings to latitude and longitude, and save them as a Google Earth KML or KMZ. Try a single point here, or convert a whole spreadsheet in the web app.
- Converter already set to EPSG:2154
- Datum shift to WGS 84 applied automatically
- Whole sheets with photos and boundaries in the web or Windows app
About France Lambert-93
Lambert-93 is the official projection for mainland France, a Lambert conformal conic on the RGF93 datum (the French realisation of ETRS89) with standard parallels at 44°N and 49°N. RGF93 is treated as WGS 84 for Google Earth work.
Where it's used: Mainland France and Corsica: cadastre, topographic surveys and public works.
Convert a whole spreadsheet
- Open the web app or the Windows app, and paste your rows from Excel or open a CSV file.
- Under Coordinate system, search for “2154” and pick RGF93 v1 / Lambert-93.
- Check one point you know on the map, then press Save KML or Save KMZ (with photos) and open it in Google Earth.
Check points for France Lambert-93
Five points inside the area of use of France Lambert-93, with their latitude and longitude on WGS 84 and their easting and northing in this grid (metres). Enter an easting and northing in the converter above: you should get the latitude and longitude shown, to a few centimetres.
| Point | Latitude | Longitude | Easting | Northing |
|---|---|---|---|---|
| Middle of the area of use | 46.35500° N | 0.26000° E | 489,353.59 | 6,587,552.20 |
| Towards the north-west | 49.47800° N | 5.81200° W | 62,469.11 | 6,966,567.96 |
| Towards the north-east | 49.47800° N | 6.33200° E | 941,493.07 | 6,936,053.55 |
| Towards the south-west | 43.23200° N | 5.81200° W | -14,816.53 | 6,276,904.99 |
| Towards the south-east | 43.23200° N | 6.33200° E | 970,768.43 | 6,242,691.43 |
Common mistakes with France Lambert-93
- Easting and northing swapped. In France Lambert-93 the middle of the grid is near easting 489,353.59 and northing 6,587,552.20. If your easting column holds numbers like 6,587,552.20, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. France Lambert-93 is in metres. Coordinates copied from a drawing in feet must be converted first, or every point moves outwards from the grid's origin.
- Forgetting the datum. France Lambert-93 is not on WGS 84: treated as WGS 84, no shift (the datums agree to about a metre or better). Picking a WGS 84 grid with the same projection instead leaves the points off by that amount.
- Points outside the grid's area. France Lambert-93 is meant for France - onshore and offshore, mainland and Corsica (France métropolitaine including Corsica). Points well outside that area convert with growing error; the converter flags them so you can choose the right grid.
- A local site grid. If every point is off by the same distance and direction, the drawing may be on a local site grid. Calibrate on three or more known control points instead.