Source: EPSG:4267 — NAD27
geographic system using latitude and longitude on an ellipsoid · Area of use: North America - NAD27
+proj=longlat +datum=NAD27 +no_defs +type=crsMore about EPSG:4267 →
Convert EPSG:4267 to EPSG:27564
Online coordinate converter from NAD27 (EPSG:4267) to NTF (Paris) / Lambert Corse (EPSG:27564). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
Convert EPSG:4267 to EPSG:27564 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4267", "EPSG:27564", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:27564 — NTF (Paris) / Lambert Corse
projected system measured in linear units (typically metres) · Area of use: France - Corsica onshore
+proj=lcc +lat_1=42.165 +lat_0=42.165 +lon_0=0 +k_0=0.99994471 +x_0=234.358 +y_0=185861.369 +ellps=clrk80ign +pm=paris +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs +type=crsMore about EPSG:27564 →
Frequently asked questions
- How accurate is converting NAD27 to NTF (Paris) / Lambert Corse?
- 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.