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Convert NAD83(2011) to NAD83(2011) + VIVD09 height

Convert coordinates from NAD83(2011) (EPSG:6319) to NAD83(2011) + VIVD09 height (EPSG:9523) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-6319-to-epsg-9523

Official EPSG transformation from NAD83(2011) to NAD83(2011) + VIVD09 height

The EPSG Geodetic Parameter Dataset defines 1 transformation between NAD83(2011) (EPSG:6319) and NAD83(2011) + VIVD09 height (EPSG:9523). Its parameters, accuracy and area of use are listed below.

NAD83(2011) to NAD83(2011) + VIVD09 height (2)

EPSG:9623±0.015 m
Method:
Geog3D to Geog2D+GravityRelatedHeight (NGS bin)
Area of use:
Virgin Islands, US - onshore
Scope:
Reversible geoid model transformation.

Grid file: g2018p0.bin

Reversible alternative to NAD83(2011) to VIVD09 height (2) (code 9231). Uses Geoid18 hybrid model. Replaces 12B model. See information source for further information.

Convert EPSG:6319 to EPSG:9523 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:6319", "EPSG:9523", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:6319 — NAD83(2011)

geographic system using latitude, longitude and ellipsoidal height · Area of use: USA - CONUS and Alaska; PRVI

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:6319 →

Target: EPSG:9523 — NAD83(2011) + VIVD09 height

compound horizontal + vertical reference system · Area of use: Virgin Islands, US - onshore

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +vunits=m +no_defs +type=crs
More about EPSG:9523 →

Frequently asked questions

How accurate is converting NAD83(2011) to NAD83(2011) + VIVD09 height?
The most accurate official EPSG transformation between these systems is accurate to about ±0.015 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) in a desktop GIS.
Does my data leave the browser when I use this converter?
No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.
Need the reverse? Convert EPSG:9523 to EPSG:6319 →