Convert Katanga 1955 to WGS 84

Convert coordinates from Katanga 1955 (EPSG:4695) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-4695-to-epsg-4326

Official EPSG transformations from Katanga 1955 to WGS 84

The EPSG Geodetic Parameter Dataset defines 2 transformations between Katanga 1955 (EPSG:4695) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.

Katanga 1955 to WGS 84 (2)

EPSG:4068±1 mBest accuracy

Method:: Molodensky-Badekas (CF geog2D domain)
Area of use:: Congo DR (Zaire) - Katanga - Lubumbashi area
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
X-axis translation(tx)	-102.283	metre
Y-axis translation(ty)	-10.277	metre
Z-axis translation(tz)	-257.396	metre
X-axis rotation(rx)	-3.976	arc-second
Y-axis rotation(ry)	-0.002	arc-second
Z-axis rotation(rz)	-6.203	arc-second
Scale difference(ds)	12.315	parts per million
Pivot X(px)	5580868.818	metre
Pivot Y(py)	2826402.46	metre
Pivot Z(pz)	-1243557.996	metre

Parameter values taken from Katanga 1955 to RGRDC 2005 (2) (code 4067) assuming that RGRDC 2005 is equivalent to WGS 84 within the accuracy of the transformation.

Katanga 1955 to WGS 84 (1)

EPSG:4066±1.5 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Congo DR (Zaire) - Katanga - Lubumbashi area
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
X-axis translation(tx)	-103.746	metre
Y-axis translation(ty)	-9.614	metre
Z-axis translation(tz)	-255.95	metre

Parameter values taken from Katanga 1955 to RGRDC 2005 (1) (code 4065) assuming that RGRDC 2005 is equivalent to WGS 84 within the accuracy of the transformation.

Convert EPSG:4695 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4695", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4695 — Katanga 1955

geographic system using latitude and longitude on an ellipsoid · Area of use: Congo DR (Zaire) - Katanga

+proj=longlat +ellps=clrk66 +no_defs +type=crs

More about EPSG:4695 →

Target: 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 →

Frequently asked questions

How accurate is converting Katanga 1955 to WGS 84?: 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 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:4695 →