Measure Distance, Area & Coordinates Of Any Location On WP7 - GPS Calculator
TatukGIS Datum Conversion Calculator
GPS Coordinates - Latitude and Longitude Finder
How to Calculate Distance between Two GPS Coordinates in Excel
Converting a bearing/distance survey to lat/lon coordinates where some corners and waypoints have been GPS'd, is it valid to adjust starting coordinates and declination to minimize sum of squared distances between computed
How to Calculate Land Area With Coordinates. - YouTube