Convert LUREF to ETRS89

Convert coordinates from LUREF (EPSG:4181) to ETRS89 (EPSG:4258) — 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-4181-to-epsg-4258

Official EPSG transformations from LUREF to ETRS89

The EPSG Geodetic Parameter Dataset defines 8 transformations between LUREF (EPSG:4181) and ETRS89 (EPSG:4258). Each applies to a specific area — pick the one whose area of use covers your data.

LUREF to ETRS89 (4)

EPSG:5483±0 mBest accuracy

Method:: Molodensky-Badekas (CF geog2D domain)
Area of use:: Luxembourg
Scope:: Geodesy. Defines LUREF from 2006 to 2014.

Parameter	Value	Unit
X-axis translation(tx)	-265.8867	metre
Y-axis translation(ty)	76.9851	metre
Z-axis translation(tz)	20.2667	metre
X-axis rotation(rx)	0.33746	arc-second
Y-axis rotation(ry)	3.09264	arc-second
Z-axis rotation(rz)	-2.53861	arc-second
Scale difference(ds)	0.4598	parts per million
Pivot X(px)	4103620.3943	metre
Pivot Y(py)	440486.4235	metre
Pivot Z(pz)	4846923.4558	metre

LUREF 2006 parameters. For an equivalent CT using the Coordinate Frame method see CT 5485. Defines LUREF between 2006 and 2014. Replaces LUREF 1994 parameters (CT 1078). May be taken as approximate transformation LUREF to WGS 84 - see CT code 5484.

LUREF to ETRS89 (3)

EPSG:5485±0 m

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Luxembourg
Scope:: Geodesy. Defines LUREF from 2006 to 2014.

Parameter	Value	Unit
X-axis translation(tx)	-189.6806	metre
Y-axis translation(ty)	18.3463	metre
Z-axis translation(tz)	-42.7695	metre
X-axis rotation(rx)	0.33746	arc-second
Y-axis rotation(ry)	3.09264	arc-second
Z-axis rotation(rz)	-2.53861	arc-second
Scale difference(ds)	0.4598	parts per million

LUREF 2006 parameters. For an equivalent CT using the Molodensky-Badekas method see code 5483. Defines LUREF between 2006 and 2014. Replaces LUREF to ETRS89 (1) (CT 1642). May be taken as approximate transformation LUREF to WGS 84 - see CT code 5486.

LUREF to ETRS89 (5)

EPSG:9898±0 m

Method:: Molodensky-Badekas (CF geog2D domain)
Area of use:: Luxembourg
Scope:: Geodesy. Defines LUREF from 2014 to 2020.

Parameter	Value	Unit
X-axis translation(tx)	-265.8979	metre
Y-axis translation(ty)	76.9761	metre
Z-axis translation(tz)	20.2504	metre
X-axis rotation(rx)	0.43335	arc-second
Y-axis rotation(ry)	3.11447	arc-second
Z-axis rotation(rz)	-2.63637	arc-second
Scale difference(ds)	0.4752	parts per million
Pivot X(px)	4103620.3891	metre
Pivot Y(py)	440486.4152	metre
Pivot Z(pz)	4846923.4466	metre

LUREF 2014 parameters. For an equivalent CT using the Coordinate Frame method see CT 9899. Defines LUREF between 2014 and 2020. Replaces LUREF 2006 parameters (CT 5483). Info source gives this CT in reverse direction. Derived using ETRF2000 @2013-01-27.

LUREF to ETRS89 (6)

EPSG:9899±0 m

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Luxembourg
Scope:: Geodesy. Defines LUREF from 2014 to 2020.

Parameter	Value	Unit
X-axis translation(tx)	-189.033	metre
Y-axis translation(ty)	14.1335	metre
Z-axis translation(tz)	-43.0901	metre
X-axis rotation(rx)	0.43331	arc-second
Y-axis rotation(ry)	3.11448	arc-second
Z-axis rotation(rz)	-2.63636	arc-second
Scale difference(ds)	0.4752	parts per million

LUREF 2014 parameters. For an equivalent CT using the Molodensky-Badekas method see CT 9898. Defines LUREF between 2014 and 2020. Replaces LUREF 2006 parameters (CT 5485). Info source gives this CT in reverse direction. Derived using ETRF2000@2013-01-27.

LUREF to ETRS89 (7)

EPSG:9937±0 m

Method:: Molodensky-Badekas (CF geog2D domain)
Area of use:: Luxembourg
Scope:: Geodesy. Defines LUREF from 2020.

Parameter	Value	Unit
X-axis translation(tx)	-265.9196	metre
Y-axis translation(ty)	76.9506	metre
Z-axis translation(tz)	20.2222	metre
X-axis rotation(rx)	0.48171	arc-second
Y-axis rotation(ry)	3.09948	arc-second
Z-axis rotation(rz)	-2.68639	arc-second
Scale difference(ds)	0.46346	parts per million
Pivot X(px)	4101567.0943	metre
Pivot Y(py)	440245.0881	metre
Pivot Z(pz)	4848681.4115	metre

LUREF 2020 parameters. For an equivalent CT using the Coordinate Frame method see CT 9938. Defines LUREF from 2020. Replaces LUREF 2014 parameters (CT 9898). Info source gives this CT in reverse direction. Derived using ETRF2000 @2013-01-27.

LUREF to ETRS89 (8)

EPSG:9938±0 m

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Luxembourg
Scope:: Geodesy. Defines LUREF from 2020.

Parameter	Value	Unit
X-axis translation(tx)	-189.228	metre
Y-axis translation(ty)	12.0035	metre
Z-axis translation(tz)	-42.6303	metre
X-axis rotation(rx)	0.48171	arc-second
Y-axis rotation(ry)	3.09948	arc-second
Z-axis rotation(rz)	-2.68639	arc-second
Scale difference(ds)	0.46346	parts per million

LUREF 2020 parameters. For an equivalent CT using the Molodensky-Badekas method see CT 9937. Defines LUREF from 2020. Replaces LUREF 2014 parameters (CT 9899). Info source gives CT in reverse direction. Derived using ETRF2000 @2013-01-27.

LUREF to ETRS89 (2)

EPSG:1078±0.1 m

Method:: Molodensky-Badekas (CF geog2D domain)
Area of use:: Luxembourg
Scope:: Transformation of coordinates at 0.1m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	-265.983	metre
Y-axis translation(ty)	76.918	metre
Z-axis translation(tz)	20.182	metre
X-axis rotation(rx)	0.4099	arc-second
Y-axis rotation(ry)	2.9332	arc-second
Z-axis rotation(rz)	-2.6881	arc-second
Scale difference(ds)	0.43	parts per million
Pivot X(px)	4098647.674	metre
Pivot Y(py)	442843.139	metre
Pivot Z(pz)	4851251.093	metre

LUREF 1994 parameters. Replaced by LUREF 2006 parameters, see transformation LUREF to ETRS89 (4) (code 5483). May be taken as approximate transformation LUREF to WGS 84 - see CT code 1079.

LUREF to ETRS89 (1)

EPSG:1642±1 m

Method:: Position Vector transformation (geog2D domain)
Area of use:: Luxembourg
Scope:: Transformation of coordinates at 1m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	-193	metre
Y-axis translation(ty)	13.7	metre
Z-axis translation(tz)	-39.3	metre
X-axis rotation(rx)	-0.41	arc-second
Y-axis rotation(ry)	-2.933	arc-second
Z-axis rotation(rz)	2.688	arc-second
Scale difference(ds)	0.43	parts per million

Derived by EuroGeographics from ACT transformation parameters (see CT code 1078). Not published by ACT. Replaced by LUREF to ETRS89 (3) (CT code 5485). May be taken as approximate transformation LUREF to WGS 84 - see CT code 1643.

Convert EPSG:4181 to EPSG:4258 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4181", "EPSG:4258", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4181 — LUREF

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

+proj=longlat +ellps=intl +towgs84=-189.6806,18.3463,-42.7695,-0.33746,-3.09264,2.53861,0.4598 +no_defs +type=crs

More about EPSG:4181 →

Target: EPSG:4258 — ETRS89

geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - ETRF by country

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs

More about EPSG:4258 →

Frequently asked questions

How accurate is converting LUREF to ETRS89?: The most accurate official EPSG transformation between these systems is accurate to about ±0 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:4258 to EPSG:4181 →