EPSG:7845 · Australia
GDA2020 / GA LCC to KML & KMZ
GDA2020 / GA LCC (EPSG:7845) is a Lambert Conformal Conic coordinate system on the GDA2020 datum, with coordinates in metres. Its official area of use is: Australia - Australian Capital Territory; New South Wales; Northern Territory; Queensland; South Australia; Tasmania; Western Australia; Victoria.
- Converter already set to EPSG:7845
- 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 “7845” and pick GDA2020 / GA LCC.
- 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:7845
Five points inside the area of use of GDA2020 / GA LCC, 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 | 26.78000° S | 133.27000° E | -71,707.69 | -3,036,901.46 |
| Towards the north-west | 16.62800° S | 121.01800° E | -1,388,102.49 | -1,991,825.03 |
| Towards the north-east | 16.62800° S | 145.52200° E | 1,232,457.27 | -1,976,602.53 |
| Towards the south-west | 36.93200° S | 121.01800° E | -1,157,745.10 | -4,213,844.32 |
| Towards the south-east | 36.93200° S | 145.52200° E | 1,027,929.40 | -4,201,148.01 |
Common mistakes with GDA2020 / GA LCC
- Easting and northing swapped. In GDA2020 / GA LCC the middle of the grid is near easting -71,707.69 and northing -3,036,901.46. If your easting column holds numbers like -3,036,901.46, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. GDA2020 / GA LCC 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. GDA2020 / GA LCC 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. GDA2020 / GA LCC is meant for Australia - Australian Capital Territory; New South Wales; Northern Territory; Queensland; South Australia; Tasmania; Western Australia; Victoria. 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.