EPSG:3383 · Malaysia
GDM2000 / Kedah and Perlis Grid to KML & KMZ
GDM2000 / Kedah and Perlis Grid (EPSG:3383) is a cass coordinate system on the GDM2000 datum, with coordinates in metres. Its official area of use is: Malaysia - West Malaysia - Kedah and Perlis.
- Converter already set to EPSG:3383
- Latitude and longitude on WGS 84, as Google Earth uses
- Download the point as KML
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Good to know
- Datum: Treated as WGS 84, no shift (the datums agree to about a metre or better).
Convert a whole spreadsheet
- Open the web app or the Windows app, and paste your rows from Excel or open a CSV file.
- Under Coordinate system, search for “3383” and pick GDM2000 / Kedah and Perlis Grid.
- Check one point you know on the map, then press Save KML or Save KMZ and open it in Google Earth.
Check points for EPSG:3383
Five points inside the area of use of GDM2000 / Kedah and Perlis Grid, with their latitude and longitude on WGS 84 and their easting and northing in this grid (metres). Enter an easting and northing in the converter above: you should get the latitude and longitude shown, to a few centimetres.
| Point | Latitude | Longitude | Easting | Northing |
|---|---|---|---|---|
| Middle of the area of use | 5.90000° N | 100.35500° E | -31,157.27 | -7,144.04 |
| Towards the north-west | 6.39200° N | 99.89600° E | -81,908.75 | 47,315.82 |
| Towards the north-east | 6.39200° N | 100.81400° E | 19,651.45 | 47,260.30 |
| Towards the south-west | 5.40800° N | 99.89600° E | -82,053.30 | -61,509.79 |
| Towards the south-east | 5.40800° N | 100.81400° E | 19,686.13 | -61,556.88 |
Common mistakes with GDM2000 / Kedah and Perlis Grid
- Easting and northing swapped. In GDM2000 / Kedah and Perlis Grid the middle of the grid is near easting -31,157.27 and northing -7,144.04. If your easting column holds numbers like -7,144.04, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. GDM2000 / Kedah and Perlis Grid 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. GDM2000 / Kedah and Perlis Grid is not on WGS 84: treated as WGS 84, no shift (the datums agree to about a metre or better). Picking a WGS 84 grid with the same projection instead leaves the points off by that amount.
- Points outside the grid's area. GDM2000 / Kedah and Perlis Grid is meant for Malaysia - West Malaysia - Kedah and Perlis. 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.