I have this set of coordinates: 4622580.00000, 503749.00000

They should roughly correlate with 51°01'39.4"N 13°44'44.2"E in Dresden, Germany.

At first I thought they might be UTM, but that puts me off the coast of Somalia. Does anybody have an idea? Or maybe they are UTM but with special options? I am unfortunately not very knowledgeable with coordinate systems.

enter image description here

  • Which UTM zone did you use? 33 North? – nmpeterson Aug 8 '14 at 15:39
  • It could also be a local coordinate system, too. I am not familiar with German coordinate systems, but I wouldn't discount the possibility. – Branco Aug 8 '14 at 15:42
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    If you use those coordinates in UTM 33N, but switch the easting and northing, it will put you off the coast of Somalia. However, using the easting and northing correctly in that zone puts you just north of Naples. – nmpeterson Aug 8 '14 at 15:45
  • where did you get that coordinates? GPS, Google Earth?, etc... – Pau Aug 8 '14 at 15:50
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    That is still problematic. The DHDN coordinate zones uses Gauß-Krüger and Zone 4 gives 4622564.6, 5656167.18 for the coordinates provided in the map by the OP. These DHDN4 coordinates match the location in the map, and the first coordinate is very close, which makes me wonder whether the second coordinate has been provided incorrectly (either by or to the OP). – MappaGnosis Aug 8 '14 at 16:20

So it's been figured out. Apparently it's a format called MDV, which is an internal format used by the company providing this data. They nevertheless appear to be based on Gauß-Krüger coordinates, but only somewhat.

As not noticed by me previously, the API does offer options for returning WGS84 coordinates as well, which fortunately makes this question obsolete and makes for a lot easier handling of the data.

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