EPSG:3763 · Portugal
ETRS89 / Portugal TM06 to KML & KMZ
ETRS89 / Portugal TM06 (EPSG:3763) is a Transverse Mercator coordinate system on the ETRS89 datum, with coordinates in metres. Its official area of use is: Portugal - mainland - onshore.
- Converter already set to EPSG:3763
- 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 “3763” and pick ETRS89 / Portugal TM06.
- 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:3763
Five points inside the area of use of ETRS89 / Portugal TM06, 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 | 39.55500° N | 7.87500° W | 22,183.29 | -12,542.93 |
| Towards the north-west | 41.11800° N | 8.88600° W | -63,231.82 | 161,255.73 |
| Towards the north-east | 41.11800° N | 6.86400° W | 106,587.20 | 161,758.87 |
| Towards the south-west | 37.99200° N | 8.88600° W | -66,135.98 | -185,817.74 |
| Towards the south-east | 37.99200° N | 6.86400° W | 111,483.25 | -185,325.14 |
Common mistakes with ETRS89 / Portugal TM06
- Easting and northing swapped. In ETRS89 / Portugal TM06 the middle of the grid is near easting 22,183.29 and northing -12,542.93. If your easting column holds numbers like -12,542.93, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. ETRS89 / Portugal TM06 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. ETRS89 / Portugal TM06 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. ETRS89 / Portugal TM06 is meant for Portugal - mainland - onshore. 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.