Convert IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N

Convert coordinates from IGN Astro 1960 / UTM zone 28N (EPSG:3367) to Mauritania 1999 / UTM zone 28N (EPSG:3343) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-3367-to-epsg-3343

Official EPSG transformation from IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N

The EPSG Geodetic Parameter Dataset defines 1 transformation between IGN Astro 1960 / UTM zone 28N (EPSG:3367) and Mauritania 1999 / UTM zone 28N (EPSG:3343). Its parameters, accuracy and area of use are listed below.

IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N (1)

EPSG:15857±40 m

Method:: Affine parametric transformation
Area of use:: Mauritania - west of 12°W onshore
Scope:: Minerals management (including oil and gas exploration and production).

Parameter	Value	Unit
A0	-532.876	metre
A1	1.00017216658401	coefficient
A2	0.00009029305555	coefficient
B0	-34.015	metre
B1	-0.00009029305555	coefficient
B2	1.00017216658401	coefficient

Parameter values consistent with the OGP Affine parametric transformation method derived by OGP from the published Helmert 2D parameter values. May be used for transformations to WGS 84 - see tfm code 15861.

Convert EPSG:3367 to EPSG:3343 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:3367", "EPSG:3343", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:3367 — IGN Astro 1960 / UTM zone 28N

projected system measured in linear units (typically metres) · Area of use: Mauritania - west of 12°W onshore

+proj=utm +zone=28 +a=6378249.145 +rf=293.465 +units=m +no_defs +type=crs

More about EPSG:3367 →

Target: EPSG:3343 — Mauritania 1999 / UTM zone 28N

projected system measured in linear units (typically metres) · Area of use: Mauritania - 18°W to 12°W

+proj=utm +zone=28 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

More about EPSG:3343 →

Frequently asked questions

How accurate is converting IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N?: The most accurate official EPSG transformation between these systems is accurate to about ±40 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official 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.

Need the reverse? Convert EPSG:3343 to EPSG:3367 →