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EPSG:2404 · China

Beijing 1954 / 3-degree Gauss-Kruger zone 28 to KML & KMZ

Beijing 1954 / 3-degree Gauss-Kruger zone 28 (EPSG:2404) is a Transverse Mercator coordinate system on the Beijing 1954 datum, with coordinates in metres. Its official area of use is: China - between 82°30'E and 85°30'E.

  • Converter already set to EPSG:2404
  • Latitude and longitude on WGS 84, as Google Earth uses
  • Download the point as KML
Convert a spreadsheet Windows app
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Good to know

  • Datum: Published 3-parameter shift (typically a few metres).

Convert a whole spreadsheet

  1. Open the web app or the Windows app, and paste your rows from Excel or open a CSV file.
  2. Under Coordinate system, search for “2404” and pick Beijing 1954 / 3-degree Gauss-Kruger zone 28.
  3. Check one point you know on the map, then press Save KML or Save KMZ and open it in Google Earth.

Common mistakes with Beijing 1954 / 3-degree Gauss-Kruger zone 28

  • Feet entered as metres. Beijing 1954 / 3-degree Gauss-Kruger zone 28 is in metres. Coordinates copied from a drawing in feet must be converted first, or every point moves outwards from the grid's origin.
  • Forgetting the datum. Beijing 1954 / 3-degree Gauss-Kruger zone 28 is not on WGS 84: published 3-parameter shift (typically a few metres). Picking a WGS 84 grid with the same projection instead leaves the points off by that amount.
  • Points outside the grid's area. Beijing 1954 / 3-degree Gauss-Kruger zone 28 is meant for China - between 82°30'E and 85°30'E. Points well outside that area convert with growing error; the converter flags them so you can choose the right grid.
  • A local site grid. If every point is off by the same distance and direction, the drawing may be on a local site grid. Calibrate on three or more known control points instead.

New to this? Read how to convert easting and northing to latitude and longitude.