Coordinate transformations to NTF

The EPSG Geodetic Parameter Dataset defines official transformations from 6 coordinate reference systems to NTF (EPSG:4275). Each page lists the published parameters, accuracy and area of use, with a free in-browser converter.

• ETRS89 → NTF±1 m
• NTF (Paris) → NTF±0 m
• RGF93 v1 → NTF±1 m
• RGF93 v2 → NTF±1 m
• RGF93 v2b → NTF±1 m
• WGS 84 → NTF±1 m