EPSG:6915 · Seychelles
South East Island 1943 / UTM zone 40N to KML & KMZ
South East Island 1943 / UTM zone 40N (EPSG:6915) is a Transverse Mercator (UTM) coordinate system on the South East Island 1943 datum, with coordinates in metres. Its official area of use is: Seychelles - Mahe, Silhouette, North, Aride Island, Praslin, La Digue and Frigate islands including adjacent smaller granitic islands on the Seychelles Bank, Bird Island and Denis Island.
- Converter already set to EPSG:6915
- Latitude and longitude on WGS 84, as Google Earth uses
- Download the point as KML
Good to know
- Pick the UTM zone by longitude. Points outside the zone's area of use are flagged after conversion.
- Datum: Published 7-parameter shift (typically 1–2 m).
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 “6915” and pick South East Island 1943 / UTM zone 40N.
- 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:6915
Five points inside the area of use of South East Island 1943 / UTM zone 40N, 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 | 4.26000° S | 55.58000° E | 342,470.82 | -470,739.88 |
| Towards the north-west | 3.90000° S | 55.32200° E | 313,748.12 | -430,986.48 |
| Towards the north-east | 3.90000° S | 55.83800° E | 371,052.10 | -430,891.42 |
| Towards the south-west | 4.62000° S | 55.32200° E | 313,919.21 | -510,607.11 |
| Towards the south-east | 4.62000° S | 55.83800° E | 371,169.86 | -510,494.37 |
Common mistakes with South East Island 1943 / UTM zone 40N
- Easting and northing swapped. In South East Island 1943 / UTM zone 40N the middle of the grid is near easting 342,470.82 and northing -470,739.88. If your easting column holds numbers like -470,739.88, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. South East Island 1943 / UTM zone 40N 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. South East Island 1943 / UTM zone 40N is not on WGS 84: published 7-parameter shift (typically 1–2 m). Picking a WGS 84 grid with the same projection instead leaves the points off by that amount.
- Points outside the grid's area. South East Island 1943 / UTM zone 40N is meant for Seychelles - Mahe, Silhouette, North, Aride Island, Praslin, La Digue and Frigate islands including adjacent smaller granitic islands on the Seychelles Bank, Bird Island and Denis Island. 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.