Convert CGRS93 to ETRS89

Convert coordinates from CGRS93 (EPSG:6311) 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-6311-to-epsg-4258

Official EPSG transformation from CGRS93 to ETRS89

The EPSG Geodetic Parameter Dataset defines 1 transformation between CGRS93 (EPSG:6311) and ETRS89 (EPSG:4258). Its parameters, accuracy and area of use are listed below.

CGRS93 to ETRS89 (1)

EPSG:7720±0.1 m

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Cyprus - onshore
Scope:: Hydrography and aeronautical charting.

Parameter	Value	Unit
X-axis translation(tx)	8.846	metre
Y-axis translation(ty)	-4.394	metre
Z-axis translation(tz)	-1.122	metre
X-axis rotation(rx)	0.00237	arc-second
Y-axis rotation(ry)	0.146528	arc-second
Z-axis rotation(rz)	-0.130428	arc-second
Scale difference(ds)	0.783926	parts per million

Derived at 6 points at epoch 1993.1. May be taken as approximate transformation CGRS93 to WGS 84 - see code 7721.

Convert EPSG:6311 to EPSG:4258 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:6311", "EPSG:4258", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:6311 — CGRS93

geographic system using latitude and longitude on an ellipsoid · Area of use: Cyprus - onshore

+proj=longlat +ellps=WGS84 +towgs84=8.846,-4.394,-1.122,-0.00237,-0.146528,0.130428,0.783926 +no_defs +type=crs

More about EPSG:6311 →

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 CGRS93 to ETRS89?: The most accurate official EPSG transformation between these systems is accurate to about ±0.1 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:4258 to EPSG:6311 →