Source: EPSG:10671 — RGM23
geographic system using latitude and longitude on an ellipsoid · Area of use: Mayotte
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:10671 →
Convert EPSG:10671 to EPSG:4470
Online coordinate converter from RGM23 (EPSG:10671) to RGM04 (EPSG:4470). 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 RGM04 to RGM23 — the parameters are invertible.
Convert EPSG:10671 to EPSG:4470 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:10671", "EPSG:4470", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:4470 — RGM04
geographic system using latitude and longitude on an ellipsoid · Area of use: Mayotte
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:4470 →
Frequently asked questions
- How accurate is converting RGM23 to RGM04?
- 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.