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:3991
Online coordinate converter from WGS 72 (EPSG:4322) to Puerto Rico State Plane CS of 1927 (EPSG:3991). 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:3991 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4322", "EPSG:3991", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:3991 — Puerto Rico State Plane CS of 1927
projected system measured in linear units (typically metres) · Area of use: Puerto Rico - onshore
+proj=lcc +lat_0=17.8333333333333 +lon_0=-66.4333333333333 +lat_1=18.4333333333333 +lat_2=18.0333333333333 +x_0=152400.30480061 +y_0=0 +ellps=clrk66 +units=us-ft +no_defs +type=crsMore about EPSG:3991 →
Frequently asked questions
- How accurate is converting WGS 72 to Puerto Rico State Plane CS of 1927?
- 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.