EPSG:CODE

CH1903 to WGS 84 (1)

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

Implemented in Bundesamt für Landestopografie programme GRANIT. Used from 1987 to 1997. Not recommended for current usage - replaced by CH1903 to WGS 84 (2) (code 1766).

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 Coordinate Frame rotation (geog2D domain) method with 1m 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:1753) has an accuracy of 1m using the Coordinate Frame rotation (geog2D domain) method. Area of use: Europe - Liechtenstein and Switzerland.