SparkFun Forums

[ekoy]

hey guys can you suggest any sites/software that can understand Coordinates from the GPS receiver (like google maps, wikimapia) but the thing is that i need a site that will calculate the distance between the two points (coordinates) that i input...

thanks

[fll-freak]

Vincenty formula. The gold standard for distance calculations between two points accounting for map datum. Here is a sample calculator:
http://www.movable-type.co.uk/scripts/l ... centy.html

[slagment]

Most websites, like google maps, want lat long in decimal form and most gps modules give lat long in degree decimal minute.

Different formats
http://www.maptools.com/UsingLatLon/Formats.html

You may need to convert the formats.
http://www.csgnetwork.com/gpscoordconv.html

Be sure the distance formula you use works with the format.
Don't forget to convert between degrees and radians.
http://www.movable-type.co.uk/scripts/latlong.html