Voirol 1875 (Paris) to Voirol 1875 (1)
EPSG:1266±0 m- Method:
- Longitude rotation
- Area of use:
- Algeria - north of 32°N
- Scope:
- Change of prime meridian.
| Parameter | Value | Unit |
|---|---|---|
| Longitude offset | 2.5969213 | grad |
Convert Voirol 1875 (Paris) to Voirol 1875
Convert coordinates from Voirol 1875 (Paris) (EPSG:4811) to Voirol 1875 (EPSG:4304) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
Official EPSG transformation from Voirol 1875 (Paris) to Voirol 1875
The EPSG Geodetic Parameter Dataset defines 1 transformation between Voirol 1875 (Paris) (EPSG:4811) and Voirol 1875 (EPSG:4304). Its parameters, accuracy and area of use are listed below.
Convert EPSG:4811 to EPSG:4304 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4811", "EPSG:4304", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Source: EPSG:4811 — Voirol 1875 (Paris)
geographic system using latitude and longitude on an ellipsoid · Area of use: Algeria - north of 32°N
+proj=longlat +ellps=clrk80ign +pm=paris +towgs84=-73,-247,227,0,0,0,0 +no_defs +type=crsMore about EPSG:4811 →
Target: EPSG:4304 — Voirol 1875
geographic system using latitude and longitude on an ellipsoid · Area of use: Algeria - north of 32°N
+proj=longlat +ellps=clrk80ign +towgs84=-73,-247,227,0,0,0,0 +no_defs +type=crsMore about EPSG:4304 →
Frequently asked questions
- How accurate is converting Voirol 1875 (Paris) to Voirol 1875?
- 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.