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Convert CHTRS95 to ETRS89

Convert coordinates from CHTRS95 (EPSG:4151) to ETRS89 (EPSG:4258) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4151-to-epsg-4258

Official EPSG transformation from CHTRS95 to ETRS89

The EPSG Geodetic Parameter Dataset defines 1 transformation between CHTRS95 (EPSG:4151) and ETRS89 (EPSG:4258). Its parameters, accuracy and area of use are listed below.

CHTRS95 to ETRS89 (1)

EPSG:8895±0.01 m
Method:
Geocentric translations (geog2D domain)
Area of use:
Europe - Liechtenstein and Switzerland
Scope:
Pan-European spatial positioning.
ParameterValueUnit
X-axis translation(tx)0metre
Y-axis translation(ty)0metre
Z-axis translation(tz)0metre

CHTRS95 is a national realization of ETRS89. May be taken as approximate transformation CHTRS95 to WGS 84 - see code 1511.

Convert EPSG:4151 to EPSG:4258 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4151", "EPSG:4258", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4151CHTRS95

geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - Liechtenstein and Switzerland

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:4151

Target: EPSG:4258ETRS89

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 CHTRS95 to ETRS89?
The most accurate official EPSG transformation between these systems is accurate to about ±0.01 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:4151