Source: EPSG:4322 — WGS 72
geographic system using latitude and longitude on an ellipsoid · Area of use: World
+proj=longlat +ellps=WGS72 +no_defs +type=crsMore about EPSG:4322 →
Convert EPSG:4322 to EPSG:29901
Online coordinate converter from WGS 72 (EPSG:4322) to OSNI 1952 / Irish National Grid (EPSG:29901). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
Convert EPSG:4322 to EPSG:29901 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4322", "EPSG:29901", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:29901 — OSNI 1952 / Irish National Grid
projected system measured in linear units (typically metres) · Area of use: UK - Northern Ireland - onshore
+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=1 +x_0=200000 +y_0=250000 +ellps=airy +towgs84=482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15 +units=m +no_defs +type=crsMore about EPSG:29901 →
Frequently asked questions
- How accurate is converting WGS 72 to OSNI 1952 / Irish National Grid?
- 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.