Convert coordinates from NTF (EPSG:4275) to ED50 (EPSG:4230) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 1 transformation between NTF (EPSG:4275) and ED50 (EPSG:4230). Its parameters, accuracy and area of use are listed below.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -84 | metre |
| Y-axis translation(ty) | 37 | metre |
| Z-axis translation(tz) | 437 | metre |
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4275", "EPSG:4230", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)geographic system using latitude and longitude on an ellipsoid · Area of use: France - onshore - mainland and Corsica
+proj=longlat +ellps=clrk80ign +towgs84=-168,-60,320,0,0,0,0 +no_defs +type=crsMore about EPSG:4275 →
geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - ED50 by country
+proj=longlat +ellps=intl +no_defs +type=crsMore about EPSG:4230 →