EPSG systems

EPSG:4655 New Beijing / 3-degree Gauss-Kruger zone 28

Projected system (Transverse Mercator) in use: China - 82.5°E to 85.5°E. The full definition below, and conversion in one click.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

Convert coordinates Open in Carte Download the .prj
System record
CodeEPSG:4655
NameNew Beijing / 3-degree Gauss-Kruger zone 28
TypeProjected system — Transverse Mercator
Area of use China - 82.5°E to 85.5°E
China - between 82°30'E and 85°30'E.
Bounds W 82,50° · S 28,26° · E 85,50° · N 47,23°
Countries China
DatumNew Beijing
Ellipsoid Krassowsky 1940 a = 6378245 m · 1/f = 298.3
Base geographic system EPSG:4555 — New Beijing
Unit metre (X north, Y east)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeCadastre, engineering survey, topographic mapping (large scale).

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin84degree
Scale factor at natural origin1unity
False easting28500000metre
False northing0metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=84 +k=1 +x_0=28500000 +y_0=0 +ellps=krass +units=m +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:4655.

WKT (ESRI format, the .prj content)

PROJCS["New_Beijing_3_Degree_Gauss_Kruger_Zone_28",GEOGCS["GCS_New_Beijing",DATUM["D_New_Beijing",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",28500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",84.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — China

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.