EPSG:2326 — Hong Kong 1980 Grid System

Projected · Hong Kong

Export Formats

OGC WKT

PROJCS[
    "Hong Kong 1980 Grid System",
    GEOGCS[
        "Hong Kong 1980",
        DATUM[
            "Hong_Kong_1980",
            SPHEROID["International 1924",6378388,297],
            TOWGS84[-162.619,-276.959,-161.764,-0.067753,2.243648,1.158828,-1.094246]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4611"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",22.3121333333333],
    PARAMETER["central_meridian",114.178555555556],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",836694.05],
    PARAMETER["false_northing",819069.8],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","2326"]
]

WKT2

PROJCRS[
    "Hong Kong 1980 Grid System",
    BASEGEOGCRS[
        "Hong Kong 1980",
        DATUM[
            "Hong Kong 1980",
            ELLIPSOID[
                "International 1924",
                6378388,
                297,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7022]
            ],
            ID["EPSG",6611]
        ],
        ID["EPSG",4611]
    ],
    CONVERSION[
        "Hong Kong 1980 Grid",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            22.3121333333336,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            114.178555555556,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            1,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            836694.05,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            819069.8,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",19978]
    ],
    CS[Cartesian,2,ID["EPSG",4500]],
    AXIS["Northing (N)",north],
    AXIS["Easting (E)",east],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",2326]
]

PROJ.4

+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

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:2326", "+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");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 2326,
  "name": "Hong Kong 1980 Grid System",
  "kind": "projected",
  "area": "Hong Kong",
  "unit": "metre",
  "bbox": [
    22.13,
    113.76,
    22.58,
    114.51
  ],
  "proj4": "+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"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (2326, 'EPSG', 2326, '+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', 'PROJCS["Hong Kong 1980 Grid System",GEOGCS["Hong Kong 1980",DATUM["Hong_Kong_1980",SPHEROID["International 1924",6378388,297],TOWGS84[-162.619,-276.959,-161.764,-0.067753,2.243648,1.158828,-1.094246]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4611"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",22.3121333333333],PARAMETER["central_meridian",114.178555555556],PARAMETER["scale_factor",1],PARAMETER["false_easting",836694.05],PARAMETER["false_northing",819069.8],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2326"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+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"
END

GeoServer

How to add a projection to GeoServer? →

2326=PROJCS["Hong Kong 1980 Grid System",GEOGCS["Hong Kong 1980",DATUM["Hong_Kong_1980",SPHEROID["International 1924",6378388,297],TOWGS84[-162.619,-276.959,-161.764,-0.067753,2.243648,1.158828,-1.094246]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4611"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",22.3121333333333],PARAMETER["central_meridian",114.178555555556],PARAMETER["scale_factor",1],PARAMETER["false_easting",836694.05],PARAMETER["false_northing",819069.8],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2326"]]

Related Coordinate Systems

Available Transformations (3)

Transformations inherited from base CRS: EPSG:4611 (Hong Kong 1980)

Transformation	Source → Target	Accuracy (m)
Hong Kong 1980 to WGS 84 (1)	4611 → 4326	1
Hong Kong 1980 to Hong Kong Geodetic CS (1)	4611 → 8427	1
Hong Kong 1980 to Hong Kong Geodetic CS (1) Deprecated	4611 → 8427	1

Other CRS for HK

Other CRS using Hong Kong 1980

Frequently Asked Questions

How do I add EPSG:2326 to GeoServer?

Add the following definition to your GeoServer configuration:

2326=PROJCS["Hong Kong 1980 Grid System",GEOGCS["Hong Kong 1980",DATUM["Hong_Kong_1980",SPHEROID["International 1924",6378388,297],TOWGS84[-162.619,-276.959,-161.764,-0.067753,2.243648,1.158828,-1.094246]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4611"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",22.3121333333333],PARAMETER["central_meridian",114.178555555556],PARAMETER["scale_factor",1],PARAMETER["false_easting",836694.05],PARAMETER["false_northing",819069.8],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2326"]]

Read the full GeoServer guide →

How do I add EPSG:2326 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (2326, 'EPSG', 2326, '+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', 'PROJCS["Hong Kong 1980 Grid System",GEOGCS["Hong Kong 1980",DATUM["Hong_Kong_1980",SPHEROID["International 1924",6378388,297],TOWGS84[-162.619,-276.959,-161.764,-0.067753,2.243648,1.158828,-1.094246]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4611"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",22.3121333333333],PARAMETER["central_meridian",114.178555555556],PARAMETER["scale_factor",1],PARAMETER["false_easting",836694.05],PARAMETER["false_northing",819069.8],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2326"]]');

Read the full PostGIS guide →

How do I add EPSG:2326 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+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"
END

Read the full MapServer guide →

How do I use EPSG:2326 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:2326", "+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");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

Hong Kong 1980

Datum

Hong Kong 1980

Ellipsoid

International 1924

Prime Meridian

Greenwich

Area of Use

Hong Kong

Hong Kong - onshore and offshore.

Coordinate System

Cartesian 2D CS. Axes: northing, easting (N,E). Orientations: north, east. UoM: m.

Center Coordinates

831936.99 823933.87

Projected Bounds

848886.40 793241.31870508.54 799078.02

WGS84 Bounds

22.58 113.76114.51 22.13

Data Source

EPSG

Information Source

Survey and Mapping Office, Lands Department. Http://www.info.gov.hk/landsd/mapping/tindex.htm

Revision Date

2006-06-22

Scope

Cadastre, engineering survey, topographic mapping (large scale).

Remarks

Replaces Hong Kong 1963 Grid System.

Country Code

EPSG

2326

ESRI Equivalent

ESRI:102140