Google is your friend. I did a Google search and found this page which shows how to take two latitudes and longitudes and calculate distance.

Now the problem becomes one of calculating the distance represented by one pixel and applying some algebra to the formula pointed out above and you have your answer.

Hope this is a help...

Peter L. Berghold -- Unix Professional
Peter -at- Berghold -dot- Net; AOL IM redcowdawg Yahoo IM: blue_cowdawg

In reply to Re: Converting Pixels to LatLong by blue_cowdawg
in thread Converting Pixels to LatLong by BaldPenguin

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