This program allows you to enter a US ZIP code and finds the GPS location of it via the service and then uses your GPS to find your location and measures the total distance between both points. The program uses the "The Vincenty inverse formula for ellipsoids." (accuracy to within 0.5mm, or 0.000015"). The ZIP code lookup service is provided by

Freeware - Download PocketPC ZIPCODEAPIRulerGPS© Now!

To run these Pocket Visual Basic programs you need the free Microsoft Distribution Source Files located at




Click here to go to the Free Windows CE Software Website

(c)1998-2019 Vincent Collura ( Inventor / Engineer )