Convert HD72 to ETRS89

Convert coordinates from HD72 (EPSG:4237) 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-4237-to-epsg-4258

Official EPSG transformations from HD72 to ETRS89

The EPSG Geodetic Parameter Dataset defines 2 transformations between HD72 (EPSG:4237) and ETRS89 (EPSG:4258). Each applies to a specific area — pick the one whose area of use covers your data.

HD72 to ETRS89 (2)

EPSG:1449±0.4 mBest accuracy

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Hungary
Scope:: Transformation of coordinates at 0.4m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	52.684	metre
Y-axis translation(ty)	-71.194	metre
Z-axis translation(tz)	-13.975	metre
X-axis rotation(rx)	0.312	arc-second
Y-axis rotation(ry)	0.1063	arc-second
Z-axis rotation(rz)	0.3729	arc-second
Scale difference(ds)	1.0191	parts per million

Derived at 1153 stations of the Hungarian National GPS Network. Values here correct parameter errors given in Hungarian standard MSZ 7222:2002. Replaces HD72 to ETRS89 (1), code 1829. May be taken as approximate tfm HD72 to WGS 84 - see tfm code 1448.

HD72 to ETRS89 (1)

EPSG:1829±0.5 m

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Hungary
Scope:: Transformation of coordinates at 0.1m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	56	metre
Y-axis translation(ty)	-75.77	metre
Z-axis translation(tz)	-15.31	metre
X-axis rotation(rx)	0.37	arc-second
Y-axis rotation(ry)	0.2	arc-second
Z-axis rotation(rz)	0.21	arc-second
Scale difference(ds)	1.01	parts per million

Derived at 5 stations. OGP recommends corrected Hungarian standard MSZ 7222 (tfm code 1449) be used in preference to this transformation. May be taken as approximate transformation HD72 to WGS 84 - see code 1830.

Convert EPSG:4237 to EPSG:4258 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4237", "EPSG:4258", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4237 — HD72

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

+proj=longlat +ellps=GRS67 +no_defs +type=crs

More about EPSG:4237 →

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 HD72 to ETRS89?: The most accurate official EPSG transformation between these systems is accurate to about ±0.4 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:4237 →