Convert coordinates from Lisbon 1890 (EPSG:4666) to ETRS89 (EPSG:4258) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 1 transformation between Lisbon 1890 (EPSG:4666) and ETRS89 (EPSG:4258). Its parameters, accuracy and area of use are listed below.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | 508.088 | metre |
| Y-axis translation(ty) | -191.042 | metre |
| Z-axis translation(tz) | 565.223 | metre |
Parameter values taken from Lisbon 1890 to WGS 84 (1) (tfm code 1986) assuming that ETRS89 is equivalent to WGS 84 within the accuracy of the transformation.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4666", "EPSG:4258", 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: Portugal - mainland - onshore
+proj=longlat +ellps=bessel +no_defs +type=crsMore about EPSG:4666 →
geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - ETRF by country
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:4258 →