Convert IGN Astro 1960 / UTM zone 28N to WGS 84 / UTM zone 28N

Convert coordinates from IGN Astro 1960 / UTM zone 28N (EPSG:3367) to WGS 84 / UTM zone 28N (EPSG:32628) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

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Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-3367-to-epsg-32628

Official EPSG transformation from IGN Astro 1960 / UTM zone 28N to WGS 84 / UTM zone 28N

The EPSG Geodetic Parameter Dataset defines 1 transformation between IGN Astro 1960 / UTM zone 28N (EPSG:3367) and WGS 84 / UTM zone 28N (EPSG:32628). Its parameters, accuracy and area of use are listed below.

IGN Astro 1960 / UTM zone 28N to WGS 84 / UTM zone 28N (1)

EPSG:15861±40 m

Method:: Affine parametric transformation
Area of use:: Mauritania - west of 12°W onshore
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.

Parameter	Value	Unit
A0	-532.876	metre
A1	1.000172166584	coefficient
A2	0.00009029305555	coefficient
B0	-34.015	metre
B1	-0.00009029305555	coefficient
B2	1.000172166584	coefficient

Transformation taken from IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N (1) (tfm code 15857) assuming that Mauritania 1999 is equivalent to WGS 84 within the accuracy of this tfm.

Convert EPSG:3367 to EPSG:32628 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:3367", "EPSG:32628", 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:32628 — WGS 84 / UTM zone 28N

projected system measured in linear units (typically metres) · Area of use: World - N hemisphere - 18°W to 12°W - by country

+proj=utm +zone=28 +datum=WGS84 +units=m +no_defs +type=crs

More about EPSG:32628 →

Frequently asked questions

How accurate is converting IGN Astro 1960 / UTM zone 28N to WGS 84 / 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:32628 to EPSG:3367 →