OS X (Eastings) 529917 OS Y (Northings) 186403 Nat Grid TQ299864 / TQ2991786403 Nearest Post Code N19 4RD Lat (WGS84) N51:33:42 (51.561551234219564) Long (WGS84) W0:07:38 (-0.1271895870214491) Lat,Long (WGS84) 51.561551234219564,-0.1271895870214491 Lat (OSGB36) N51:33:40 (51.56104707262246) Long (OSGB36) W0:07:32 (-0.12558079170413006) Lat,Long (OSGB36) 51.56104707262246,-0.12558079170413006 what3words custom.error.wins Open Loc/Plus code 9C3XHV6F+J4F