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I have coordinates in Korea 2000 EPSG:5181 projected coordinate system.

Is there a way to make a formulation in excel to convert these coordinates to lat long (WGS84)?

  • Which GIS software are you using? – whyzar Nov 7 '17 at 8:32
  • Not using any GIS software. I want to know the formulas to transform the above mentioned coordinate system because i have a lot of data to convert so I want to make an excel sheet to transform the coordinates. Can you help? Thanks for your kind response – Aqi Nov 7 '17 at 8:35
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    why you do not use gis software like gdal with batch processing ? – Hugo Roussaffa - GeoDatup Nov 7 '17 at 8:55
  • ... or use the official formulas from epsg.org/Portals/0/373-07-2.pdf page 45 ff with the parameters from epsg.io/5181 – AndreJ Nov 7 '17 at 13:00
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I would suggest looking into these two sources Converting UTM to Latitude and Longitude (Or Vice Versa)

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and Coordinate Systems in the Plane

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This program was recently updated using the formulas of Charles Karney (2010). His paper claims accuracy of a few nanometers. Excel has 15-digit accuracy, so the spreadsheet doesn't achieve that level, but is accurate to about 0.01mm.

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