One of the easiest ways of finding your Latitude and Logitude is to use the Acme Mapper.

Fire up your web browser

Visit http://mapper.acme.com/

Find your weather station site (or as close to it as you can)

Type in your city, and adjust the map until you find your location.

Do a little dance… (Loran conversion)

Under options, Change the Coords to NS d m.mmm’ EW d m.mmm’ This is what it gives me for my location on N 40 43.606′ W 73 52.625′.

My Loran is:

4043.60N  (Latitude is 8 characters which include the . and N)
07352.62W (Longitude is 9 characters)

Last digits are dropped and the N & W are moved to the end.

Do another little dance… (Decimal conversion)

Under options, Change the Coords to d.ddd d.ddd

My Decimal is:

40.72677 -73.87709