Source: EPSG:4749 — RGNC91-93
geographic system using latitude and longitude on an ellipsoid · Area of use: New Caledonia
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:4749 →
Convert EPSG:4749 to EPSG:4641
Online coordinate converter from RGNC91-93 (EPSG:4749) to IGN53 Mare (EPSG:4641). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
The EPSG dataset defines official transformation parameters for the reverse direction. See IGN53 Mare to RGNC91-93 — the parameters are invertible.
Convert EPSG:4749 to EPSG:4641 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4749", "EPSG:4641", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:4641 — IGN53 Mare
geographic system using latitude and longitude on an ellipsoid · Area of use: New Caledonia - Mare
+proj=longlat +ellps=intl +towgs84=287.58,177.78,-135.41,0,0,0,0 +no_defs +type=crsMore about EPSG:4641 →
Frequently asked questions
- How accurate is converting RGNC91-93 to IGN53 Mare?
- 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.