Voirol 1875 (Paris) to WGS 84 (1)
EPSG:8211- Method:
- Concatenated operation
- Area of use:
- Algeria - north of 32°N
- Scope:
- Oil and gas exploration and production.
- Voirol 1875 (Paris) to Voirol 1875 (1) (null)
- Voirol 1875 to WGS 84 (1) (null)
Convert Voirol 1875 (Paris) to WGS 84
Convert coordinates from Voirol 1875 (Paris) (EPSG:4811) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
Official EPSG transformation from Voirol 1875 (Paris) to WGS 84
The EPSG Geodetic Parameter Dataset defines 1 transformation between Voirol 1875 (Paris) (EPSG:4811) and WGS 84 (EPSG:4326). Its parameters, accuracy and area of use are listed below.
Convert EPSG:4811 to EPSG:4326 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4811", "EPSG:4326", 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:4326 — WGS 84
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 →
Frequently asked questions
- How accurate is converting Voirol 1875 (Paris) to WGS 84?
- Projection-only conversions are accurate to floating-point precision. If a datum shift is involved, browser-based tools use Helmert parameters which are accurate to roughly 1-5 m; for surveying-grade work apply the official grid-shift 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.