Any Geo Guru's here who might ken' the answer to this problem: I'm converting MGRS to Lat/Lon and am then plotting it. When an MGRS grid is in the western hemisphere (west of Greenwich) the resulting Longitude is negative. I need that to be a positive westing. I've Googled and found someone saying you need to multiply the equation for deg, min, sec by -1 to allow for Westings. Is this correct? Cheers.