EPSG:3414 · Asia-Pacific
Singapore SVY21 to KML & KMZ
Convert Singapore SVY21 eastings and northings to latitude and longitude, and save them as a Google Earth KML or KMZ. Try a single point here, or convert a whole spreadsheet in the web app.
- Converter already set to EPSG:3414
- Datum shift to WGS 84 applied automatically
- Whole sheets with photos and boundaries in the web or Windows app
About Singapore SVY21
SVY21 is Singapore's national coordinate system, a Transverse Mercator projection on the SVY21 datum, which is aligned with WGS 84. It is the reference for Singapore Land Authority cadastral and engineering surveys.
Where it's used: Singapore: cadastral, construction and utility surveys.
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 “3414” and pick SVY21 / Singapore TM.
- Check one point you know on the map, then press Save KML or Save KMZ (with photos) and open it in Google Earth.
Check points for Singapore SVY21
Five points inside the area of use of Singapore SVY21, 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 | 1.30000° N | 103.83000° E | 27,630.67 | 31,372.91 |
| Towards the north-west | 1.40200° N | 103.68600° E | 11,605.43 | 42,652.07 |
| Towards the north-east | 1.40200° N | 103.97400° E | 43,655.94 | 42,652.02 |
| Towards the south-west | 1.19800° N | 103.68600° E | 11,604.11 | 20,094.72 |
| Towards the south-east | 1.19800° N | 103.97400° E | 43,657.20 | 20,094.69 |
Common mistakes with Singapore SVY21
- Easting and northing swapped. In Singapore SVY21 the middle of the grid is near easting 27,630.67 and northing 31,372.91. If your easting column holds numbers like 31,372.91, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. Singapore SVY21 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. Singapore SVY21 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. Singapore SVY21 is meant for Singapore - onshore and offshore. 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.