Hi,

I am developing an application (C# .net), where I would need to know
how far is one place from another. So for example, I would need to
know how many kilometers are in between ZIP 90210 (Beverly Hills, CA)
to ZIP 14225 (Buffalo, NY). Something similar to this:
http://www.indo.com/distance/ but also based on zip codes.

I guess one easy way to do this would be to convert zips into
lat./long. and then take it from there? Also, I would like it to work
for distances say USA to Canada (Niagara Falls, NY to Fort Erie, ON).
I guess with lat./long. that would take care of it.

So I guess what I need is information on how I calculate the distance
between one zip code (postal code) to another.... and the cheapest way
to do it, as I do not have that much of a budget.

Thanks,
Alex

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Request for Question Clarification by pafalafa-ga on 20 Apr 2005 09:26 PDT

Here's a piece of freeware that does exactly what you want:


http://www.dirfile.com/downloadnow_zipoid_freeware.html
ZIP Code verification, distance calculator and look-up tool. Calculate
the distance ranges between different ZIP Code locations, look up area
codes and all cities and towns located within the specified ZIP Code
location.


Does that meet your needs, or do you expicitly need a C#.net solution?


Let me know.


pafalafa-ga

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Clarification of Question by ukie81-ga on 20 Apr 2005 09:42 PDT

that is a good software.. however what i need is NOT to use the
software, but to be able to use the data (zip code & long./lat.) to be
able to do exactly what the sofware does but in my own .net
applications without contacting 3rd party...

I guess I would need data (access file) with info on zip, long./lat.
and information on how to calculate distance from one long./lat. to
another.

Thanks,
Alex