Coordinate transformations to NAVD88 height

The EPSG Geodetic Parameter Dataset defines official transformations from 6 coordinate reference systems to NAVD88 height (EPSG:5703). Each page lists the published parameters, accuracy and area of use, with a free in-browser converter.

• NAD83(2011) → NAVD88 height±0.015 m
• NAD83(FBN) → NAVD88 height±0.02 m
• NAD83(HARN) → NAVD88 height±0.02 m
• NAD83(NSRS2007) → NAVD88 height±0.05 m
• NGVD29 height (ftUS) → NAVD88 height±0.02 m
• NGVD29 height (m) → NAVD88 height±0.02 m