Source: EPSG:4163 — Yemen NGN96
geographic system using latitude and longitude on an ellipsoid · Area of use: Yemen
+proj=longlat +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:4163 →
Convert EPSG:4163 to EPSG:4164
Online coordinate converter from Yemen NGN96 (EPSG:4163) to South Yemen (EPSG:4164). 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 South Yemen to Yemen NGN96 — the parameters are invertible.
Convert EPSG:4163 to EPSG:4164 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4163", "EPSG:4164", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:4164 — South Yemen
geographic system using latitude and longitude on an ellipsoid · Area of use: Yemen - South Yemen - mainland
+proj=longlat +ellps=krass +towgs84=-76,-138,67,0,0,0,0 +no_defs +type=crsMore about EPSG:4164 →
Frequently asked questions
- How accurate is converting Yemen NGN96 to South Yemen?
- 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.