Convert EPSG:2326 to EPSG:4978

Online coordinate converter from Hong Kong 1980 Grid System (EPSG:2326) to WGS 84 (EPSG:4978). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.

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Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-2326-to-epsg-4978

Convert EPSG:2326 to EPSG:4978 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:2326", "EPSG:4978", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:2326 — Hong Kong 1980 Grid System

projected system measured in linear units (typically metres) · Area of use: Hong Kong

+proj=tmerc +lat_0=22.3121333333333 +lon_0=114.178555555556 +k=1 +x_0=836694.05 +y_0=819069.8 +ellps=intl +towgs84=-162.619,-276.959,-161.764,0.067753,-2.243648,-1.158828,-1.094246 +units=m +no_defs +type=crs

More about EPSG:2326 →

Target: EPSG:4978 — WGS 84

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World

+proj=geocent +datum=WGS84 +units=m +no_defs +type=crs

More about EPSG:4978 →

Frequently asked questions

How accurate is converting Hong Kong 1980 Grid System to WGS 84?: 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:4978 to EPSG:2326 →