NGO 1948 (Oslo) to NGO1948 (1)
EPSG:1762±0 m- Method:
- Longitude rotation
- Area of use:
- Norway - onshore
- Scope:
- Change of prime meridian.
| Parameter | Value | Unit |
|---|---|---|
| Longitude offset | 10.43225 | sexagesimal DMS |
Convert NGO 1948 (Oslo) to NGO 1948
Convert coordinates from NGO 1948 (Oslo) (EPSG:4817) to NGO 1948 (EPSG:4273) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
Official EPSG transformation from NGO 1948 (Oslo) to NGO 1948
The EPSG Geodetic Parameter Dataset defines 1 transformation between NGO 1948 (Oslo) (EPSG:4817) and NGO 1948 (EPSG:4273). Its parameters, accuracy and area of use are listed below.
Convert EPSG:4817 to EPSG:4273 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4817", "EPSG:4273", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Source: EPSG:4817 — NGO 1948 (Oslo)
geographic system using latitude and longitude on an ellipsoid · Area of use: Norway - onshore
+proj=longlat +a=6377492.018 +rf=299.1528128 +pm=oslo +towgs84=278.3,93,474.5,7.889,0.05,-6.61,6.21 +no_defs +type=crsMore about EPSG:4817 →
Target: EPSG:4273 — NGO 1948
geographic system using latitude and longitude on an ellipsoid · Area of use: Norway - onshore
+proj=longlat +a=6377492.018 +rf=299.1528128 +towgs84=278.3,93,474.5,7.889,0.05,-6.61,6.21 +no_defs +type=crsMore about EPSG:4273 →
Frequently asked questions
- How accurate is converting NGO 1948 (Oslo) to NGO 1948?
- The most accurate official EPSG transformation between these systems is accurate to about ±0 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation in a desktop GIS.
- Does my data leave the browser when I use this converter?
- No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.