Source: 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=crsMore about EPSG:9523 →
Convert EPSG:9523 to EPSG:6319
Online coordinate converter from NAD83(2011) + VIVD09 height (EPSG:9523) to NAD83(2011) (EPSG:6319). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
The EPSG dataset defines official transformation parameters for the reverse direction. See NAD83(2011) to NAD83(2011) + VIVD09 height — the parameters are invertible.
Convert EPSG:9523 to EPSG:6319 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:9523", "EPSG:6319", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: 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=crsMore about EPSG:6319 →
Frequently asked questions
- How accurate is converting NAD83(2011) + VIVD09 height to NAD83(2011)?
- Projection-only conversions are accurate to floating-point precision. If a datum shift is involved, browser-based tools use Helmert parameters which are accurate to roughly 1-5 m; for surveying-grade work apply the official grid-shift transformation 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.