Convert coordinates from Qoornoq 1927 (EPSG:4194) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 2 transformations between Qoornoq 1927 (EPSG:4194) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | 163.511 | metre |
| Y-axis translation(ty) | 127.533 | metre |
| Z-axis translation(tz) | -159.789 | metre |
| X-axis rotation(rx) | 0 | arc-second |
| Y-axis rotation(ry) | 0 | arc-second |
| Z-axis rotation(rz) | 0.814 | arc-second |
| Scale difference(ds) | -0.6 | parts per million |
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | 164 | metre |
| Y-axis translation(ty) | 138 | metre |
| Z-axis translation(tz) | -189 | metre |
Derived at 2 stations. Accuracy 25m, 25m and 32m in X, Y and Z axes.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4194", "EPSG:4326", 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: Greenland - west coast
+proj=longlat +ellps=intl +no_defs +type=crsMore about EPSG:4194 →
geographic system using latitude and longitude on an ellipsoid · Area of use: World (by country)
+proj=longlat +datum=WGS84 +no_defs +type=crsMore about EPSG:4326 →