OS X (Eastings) 5506600 OS Y (Northings) 3840890 Nat Grid 066408 / 0660040890 Nearest Post Code Lat (WGS84) N12:32:42 (12.545059401107444) Long (WGS84) W75:25:40 (-75.42773548943983) Lat,Long (WGS84) 12.545059401107444,-75.42773548943983 Lat (OSGB36) N4257887:27:38 (4257887.460540934) Long (OSGB36) W19402275:25:27 (-19402275.424270675) Lat,Long (OSGB36) 4257887.460540934,-19402275.424270675 what3words sheet.decontrol.prolongation Open Loc/Plus code 7746GHWC+2WC