EPSG:CODE

CH1903 to WGS 84 (2)

EPSG:4149 → EPSG:4326

Coordinate Reference Systems

Source CRS
EPSG:4149
CH1903
Geographic 2D
Target CRS
EPSG:4326
WGS 84
Geographic 2D

Transform Coordinates

Remarks

Parameters values from CH1903 to ETRS89-CHE [CHTRF95] (1) (CT code 1646) assuming ETRS89 and WGS 84 can be considered the same to within the accuracy of the transformation. Replaces CH1903 to WGS 84 (1) (code 1753). Replaced by CH1903 to WGS 84 (3) (code 7788).

Frequently Asked Questions

How do I convert CH1903 to WGS 84 coordinates?

Use the coordinate transformation tool above to convert CH1903 (EPSG:4149) to WGS 84 (EPSG:4326). Enter your source coordinates and click Transform. This uses the Geocentric translations (geog2D domain) method with 1.5m accuracy.

How do I transform CH1903 to WGS 84 using Proj4js?

Use proj4.defs to define both EPSG:4149 and EPSG:4326, then call proj4(source, target, [x, y]) to convert coordinates programmatically.

What is the accuracy of the CH1903 to WGS 84 transformation?

This transformation (EPSG:1766) has an accuracy of 1.5m using the Geocentric translations (geog2D domain) method. Area of use: Europe - Liechtenstein and Switzerland.