Sunday, March 18, 2012

Converting GPS file formats


What to do? You’ve got a .tpo track file from TOPO! that you want to put on your GPS. or you’re dying to see how a .gpx file looks in Google Earth. Well, you’re not alone. Thousands of others GPS aficianados struggle with the same alphabet soup, and concommitant translation problems. Fortunately, solutions are at hand. Let’s look at some file converters.


Developed by Robert Lipe, GPSBabel is my new favorite in this category, thanks to its newfound ability to convert .tpo files used in National Geographic TOPO! Heck, just take a look at this file compatibility list to get an idea of its utility. Most people will feel quite comfortable using their GUI interface.


G7toWin is another very worthy file converter, with extensive filters and options. There is also an interesting story about where the name came from.

These programs can be indispensable. The next time you hit a roadblock, turn to one of these excellent utilities.

Other posts in this series:


About Rich Owings

Rich is the owner, editor and chief bottle-washer for GPS Tracklog. Connect with him on Twitter, Facebook or Google Plus.


  1. Where can I get Topo maps in *.usr files for Lowrance Elite 5m Baja? Can anyone convert *.gpx to *.usr? Can’t find Lowrance microsd card loaded with F52t 108-142-s ???

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