Source: EPSG:10312 — RGNC15 (lon-lat)
geographic system using latitude and longitude on an ellipsoid · Area of use: New Caledonia
+proj=longlat +ellps=GRS80 +no_defs +type=crsMore about EPSG:10312 →
Convert EPSG:10312 to EPSG:10307
Online coordinate converter from RGNC15 (lon-lat) (EPSG:10312) to RGNC91-93 (lon-lat) (EPSG:10307). 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 RGNC91-93 (lon-lat) to RGNC15 (lon-lat) — the parameters are invertible.
Convert EPSG:10312 to EPSG:10307 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:10312", "EPSG:10307", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:10307 — RGNC91-93 (lon-lat)
geographic system using latitude and longitude on an ellipsoid · Area of use: New Caledonia
+proj=longlat +ellps=GRS80 +no_defs +type=crsMore about EPSG:10307 →
Frequently asked questions
- How accurate is converting RGNC15 (lon-lat) to RGNC91-93 (lon-lat)?
- 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.