OS X (Eastings) 530121 OS Y (Northings) 181067 Nat Grid TQ301810 / TQ3012181067 Nearest Post Code WC2H 9HW Lat (WGS84) N51:30:49 (51.513551811854605) Long (WGS84) W0:07:34 (-0.12621883290875652) Lat,Long (WGS84) 51.513551811854605,-0.12621883290875652 Lat (OSGB36) N51:30:47 (51.513042077640385) Long (OSGB36) W0:07:29 (-0.12461189930309402) Lat,Long (OSGB36) 51.513042077640385,-0.12461189930309402 what3words across.finest.singer Open Loc/Plus code 9C3XGV7F+CGC