Calculating latitude/longitude for X, Y points?

How can I calculate latitude/longitude for an X, Y point?



Ex:

Convert X: 6459382.30281, Y:1894064.05028999 to

LAT: 34.198635,Long: -118.341894



Please help, I am trying to mark map points using Google Map API, but the database has only X,Y points. Google Map API's GMarker requires lat/long to create a marker on the map.



Thanks in advance. Happy New Year!Calculating latitude/longitude for X, Y points?
What projection are your X,Y coordinates in? Doesn't look like UTM.



Before you can calculate, you need to know what projection you are coming from.



EDIT:

Yes, I can tell they are northing and easting as well. But you need to know what coordinate system they are in. Whether it be UTM, MTM or whatever. Only then can you begin to convert.Calculating latitude/longitude for X, Y points?
In order for you to place these co-ordinates on a map you will need to know whether the Latitude is North or South and the Longitude is East or West.

I'm sorry I do not recognise the numbers you are converting from as those that can be related to a map. There appears to be something missing.

la mer