Convert EPSG:4611 to EPSG:6318

Online coordinate converter from Hong Kong 1980 (EPSG:4611) to NAD83(2011) (EPSG:6318). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-4611-to-epsg-6318

Convert EPSG:4611 to EPSG:6318 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4611", "EPSG:6318", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4611 — Hong Kong 1980

geographic system using latitude and longitude on an ellipsoid · Area of use: Hong Kong

+proj=longlat +ellps=intl +towgs84=-162.619,-276.959,-161.764,0.067753,-2.243648,-1.158828,-1.094246 +no_defs +type=crs

More about EPSG:4611 →

Target: EPSG:6318 — NAD83(2011)

geographic system using latitude and longitude on an ellipsoid · 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:6318 →

Frequently asked questions

How accurate is converting Hong Kong 1980 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.

Need the reverse? Convert EPSG:6318 to EPSG:4611 →