Coordinate transformations to Caspian depth

The EPSG Geodetic Parameter Dataset defines official transformations from 2 coordinate reference systems to Caspian depth (EPSG:5706). Each page lists the published parameters, accuracy and area of use, with a free in-browser converter.

• AIOC95 depth → Caspian depth±0 m
• Baltic 1977 depth → Caspian depth±0 m