CH1903 (Bern) to CH1903 (1)
EPSG:1765±0 m- Method:
- Longitude rotation
- Area of use:
- Europe - Liechtenstein and Switzerland
- Scope:
- Change of prime meridian.
| Parameter | Value | Unit |
|---|---|---|
| Longitude offset | 7.26225 | sexagesimal DMS |
Convert CH1903 (Bern) to CH1903
Convert coordinates from CH1903 (Bern) (EPSG:4801) to CH1903 (EPSG:4149) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
Official EPSG transformation from CH1903 (Bern) to CH1903
The EPSG Geodetic Parameter Dataset defines 1 transformation between CH1903 (Bern) (EPSG:4801) and CH1903 (EPSG:4149). Its parameters, accuracy and area of use are listed below.
Convert EPSG:4801 to EPSG:4149 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4801", "EPSG:4149", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Source: EPSG:4801 — CH1903 (Bern)
geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - Liechtenstein and Switzerland
+proj=longlat +ellps=bessel +pm=bern +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crsMore about EPSG:4801 →
Target: EPSG:4149 — CH1903
geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - Liechtenstein and Switzerland
+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crsMore about EPSG:4149 →
Frequently asked questions
- How accurate is converting CH1903 (Bern) to CH1903?
- 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.