EPSG:4391 · Malaysia
Kertau 1968 / Sembilan and Melaka Grid to KML & KMZ
Kertau 1968 / Sembilan and Melaka Grid (EPSG:4391) is a cass coordinate system on the Kertau 1968 datum, with coordinates in metres. Its official area of use is: Malaysia - West Malaysia - Negeri Sembilan and Melaka.
- Converter already set to EPSG:4391
- Latitude and longitude on WGS 84, as Google Earth uses
- Download the point as KML
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Good to know
- Datum: Published 3-parameter shift (typically a few metres).
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 “4391” and pick Kertau 1968 / Sembilan and Melaka 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:4391
Five points inside the area of use of Kertau 1968 / Sembilan and Melaka 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 | 2.65500° N | 102.20500° E | 29,261.79 | -7,262.42 |
| Towards the north-west | 3.03000° N | 101.90200° E | -4,430.65 | 34,200.92 |
| Towards the north-east | 3.03000° N | 102.50800° E | 62,935.29 | 34,217.32 |
| Towards the south-west | 2.28000° N | 101.90200° E | -4,433.27 | -48,731.62 |
| Towards the south-east | 2.28000° N | 102.50800° E | 62,973.30 | -48,719.27 |
Common mistakes with Kertau 1968 / Sembilan and Melaka Grid
- Easting and northing swapped. In Kertau 1968 / Sembilan and Melaka Grid the middle of the grid is near easting 29,261.79 and northing -7,262.42. If your easting column holds numbers like -7,262.42, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. Kertau 1968 / Sembilan and Melaka 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. Kertau 1968 / Sembilan and Melaka Grid 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. Kertau 1968 / Sembilan and Melaka Grid is meant for Malaysia - West Malaysia - Negeri Sembilan and Melaka. 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.