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Convert WGS 84 to NTF

Convert coordinates from WGS 84 (EPSG:4326) to NTF (EPSG:4275) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4326-to-epsg-4275

Official EPSG transformation from WGS 84 to NTF

The EPSG Geodetic Parameter Dataset defines 1 transformation between WGS 84 (EPSG:4326) and NTF (EPSG:4275). Its parameters, accuracy and area of use are listed below.

WGS 84 to NTF (3)

EPSG:15960±1 m
Method:
NTv2
Area of use:
France - onshore - mainland and Corsica
Scope:
(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences.

Grid file: rgf93_ntf.gsb

These parameter values are taken from RGF93 to NTF (2) (code 15958) as RGF93 may be considered equivalent to WGS 84 within the accuracy of the transformation.

Convert EPSG:4326 to EPSG:4275 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4326", "EPSG:4275", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4326 — WGS 84

geographic system using latitude and longitude on an ellipsoid · Area of use: World (by country)

+proj=longlat +datum=WGS84 +no_defs +type=crs
More about EPSG:4326 →

Target: EPSG:4275 — NTF

geographic system using latitude and longitude on an ellipsoid · Area of use: France - onshore - mainland and Corsica

+proj=longlat +ellps=clrk80ign +towgs84=-168,-60,320,0,0,0,0 +no_defs +type=crs
More about EPSG:4275 →

Frequently asked questions

How accurate is converting WGS 84 to NTF?
The most accurate official EPSG transformation between these systems is accurate to about ±1 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) 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.
Need the reverse? Convert EPSG:4275 to EPSG:4326 →