EPSG:CODE

OSGB36 to ETRS89 (1)

EPSG:4277 → EPSG:4258

Coordinate Reference Systems

Source CRS
EPSG:4277
OSGB36
Geographic 2D
Target CRS
EPSG:4258
ETRS89
Geographic 2D

Remarks

Approximate alternative to official OSTN02 method (tfm code 7952). Accuracy at 2000 test points compared to OSTN02 (tfm code 1039): latitude 0.5mm av, 17mm max; longitude 0.8mm av, 23mm max. May be taken as approximate CT to WGS 84 - see code 5339.

Frequently Asked Questions

What is the accuracy of the OSGB36 to ETRS89 transformation?

This transformation (EPSG:5338) has an accuracy of 0.03m using the NTv2 method. Area of use: UK - Great Britain onshore; Isle of Man.