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I've downloaded the data from NYC Parking regulation. I want to plot that on Google Maps. I use http://www.shpescape.com/ft/ to convert to Google Fusion Maps but the data is in X,Y coordinates instead of Lat, Long. How do I convert X,Y coordinates to Lat, Long? I'm using OSX.

Here's the sample data.

1005740.867110
243957.356623
  • possible duplicate of Converting coordinates to 4326 for Google Maps. – Brad Nesom Jul 28 '15 at 22:25
  • It helps to think geographic coordinate system data as "Lon,Lat", so you don't flip the X,Y order. – Vince Jul 28 '15 at 22:34
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    Looks like NAD83 state plane New York Long Island using US survey feet, EPSG:2263. – mkennedy Jul 28 '15 at 22:57
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Your data is in LAT/LON (WGS84) but the X and Y columns are in a projected coordinate system, likely something like UTM or State Plane.

So all you have to do is create 2 new columns for the Lat and Lon, and populate them like this:

How do I calculate the latitude and longitude of points using QGIS?

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