Coordinate Reference Systems
Transform Coordinates
Frequently Asked Questions
How do I convert RRAF 1991 to RGAF09 coordinates?
Use the coordinate transformation tool above to convert RRAF 1991 (EPSG:4558) to RGAF09 (EPSG:5489). Enter your source coordinates and click Transform. This uses the Position Vector transformation (geog2D domain) method with 0.1m accuracy.
How do I transform RRAF 1991 to RGAF09 using Proj4js?
Use proj4.defs to define both EPSG:4558 and EPSG:5489, then call proj4(source, target, [x, y]) to convert coordinates programmatically.
What is the accuracy of the RRAF 1991 to RGAF09 transformation?
This transformation (EPSG:5496) has an accuracy of 0.1m using the Position Vector transformation (geog2D domain) method. Area of use: Guadeloupe - St Martin and St Barthelemy - onshore.