EPSG:CODE

S-JTSK to ETRS89 (1)

EPSG:4156 → EPSG:4258

Coordinate Reference Systems

Source CRS
EPSG:4156
S-JTSK
Geographic 2D
Target CRS
EPSG:4258
ETRS89
Geographic 2D

Transform Coordinates

Remarks

May be taken as approximate transformation S-JTSK to WGS 84 - see code 1623. Improved by S-JTSK/05 to ETRS89 (1) (code 5226) in 2009, where S-JTSK/05 is a scientific working system and S-JTSK remains the legal system in Czechia.

Frequently Asked Questions

How do I convert S-JTSK to ETRS89 coordinates?

Use the coordinate transformation tool above to convert S-JTSK (EPSG:4156) to ETRS89 (EPSG:4258). Enter your source coordinates and click Transform. This uses the Position Vector transformation (geog2D domain) method with 1m accuracy.

How do I transform S-JTSK to ETRS89 using Proj4js?

Use proj4.defs to define both EPSG:4156 and EPSG:4258, then call proj4(source, target, [x, y]) to convert coordinates programmatically.

What is the accuracy of the S-JTSK to ETRS89 transformation?

This transformation (EPSG:1622) has an accuracy of 1m using the Position Vector transformation (geog2D domain) method. Area of use: Czechia.