Coordinate transformations to Belfast height

The EPSG Geodetic Parameter Dataset defines official transformations from 3 coordinate reference systems to Belfast height (EPSG:5732). Each page lists the published parameters, accuracy and area of use, with a free in-browser converter.

• ETRS89 → Belfast height±0.014 m
• Poolbeg height (ft(Br36)) → Belfast height±0.1 m
• Poolbeg height (m) → Belfast height±0.1 m