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Convert M'poraloko to WGS 84

Convert coordinates from M'poraloko (EPSG:4266) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4266-to-epsg-4326

Official EPSG transformations from M'poraloko to WGS 84

The EPSG Geodetic Parameter Dataset defines 2 transformations between M'poraloko (EPSG:4266) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.

M'poraloko to WGS 84 (2)

EPSG:1532±0.5 mBest accuracy
Method:
Geocentric translations (geog2D domain)
Area of use:
Gabon
Scope:
Oil and gas exploration and production.
ParameterValueUnit
X-axis translation(tx)-80.7metre
Y-axis translation(ty)-132.5metre
Z-axis translation(tz)41.1metre

Derived as mean of Doris determinations at 3 stations in Port Gentil area in 1994.

M'poraloko to WGS 84 (1)

EPSG:1163±44 m
Method:
Geocentric translations (geog2D domain)
Area of use:
Gabon
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)-74metre
Y-axis translation(ty)-130metre
Z-axis translation(tz)42metre

Derived at 1 station. Accuracy 25m in each axis.

Convert EPSG:4266 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4266", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4266M'poraloko

geographic system using latitude and longitude on an ellipsoid · Area of use: Gabon

+proj=longlat +ellps=clrk80ign +no_defs +type=crs
More about EPSG:4266

Target: EPSG:4326WGS 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

Frequently asked questions

How accurate is converting M'poraloko to WGS 84?
The most accurate official EPSG transformation between these systems is accurate to about ±0.5 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:4326 to EPSG:4266