[Proj] convert latlon to UTM without knowing the zone beforehand

Charles Karney charles.karney at sri.com
Wed Dec 17 08:45:39 EST 2014

The GeoConvert utility from GeographicLib might serve your needs.  For

$ echo 33.3N 44.4E | GeoConvert -u -p 3
38n 444140.545 3684706.356

Here is the man page




to try it out.  This page also has a link for downloading GeographicLib.

On 12/17/2014 08:34 AM, Margherita Di Leo wrote:
> Hi,
> I need to convert any pairs of geographic coordinates (latlon) into UTM.
> This needs to run automatically so that I need an automatic tool to tell
> for any pairs which UTM zone it belongs to before converting. Of course
> I can encode in my script all possible cases, but before reinventing the
> wheel i wanted to ask if there is such tool already within proj.4 library.
> Thank you in advance
> --
> Best regards,
> Dr. Margherita DI LEO
> Scientific / technical project officer

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