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I would like to find out what projection is google map using is it EPSG:4326 or P900913 ? Also if you use the drawing tools what projection coordinates are generated?

biz14
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EPSG3857 is the official designation.

Interactive web maps are using "Spherical Mercator" system which uses Mercator projection on
the sphere instead of WGS84 ellipsoid.

More information

geocodezip
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Google Maps uses the Mercator projection for this purpose https://developers.google.com/maps/documentation/javascript/maptypes#WorldCoordinates

wf9a5m75
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  • Commonly what projection does google map use when it is translating any of the lat long value on its map? – biz14 Feb 22 '13 at 03:07
  • @What EPSG value does that represents is 4326 or 900913 – biz14 Feb 22 '13 at 15:19
  • > Google Earth uses the WGS84 projection which has the code EPSG:4326 whereas Google Maps uses EPSG:3857 (alias EPSG:900913). (http://gis.stackexchange.com/questions/21427/why-are-the-tile-coordinates-different-in-google-maps-and-google-earth) – wf9a5m75 Feb 22 '13 at 22:51
  • so can I say whatever drawing I do on google map is eventually in EPSG:3857? And whatever lat long value I try to project on the map is eventually converted into EPSG:3857 for google map. – biz14 Feb 23 '13 at 02:03