OS X (Eastings) 400625 OS Y (Northings) 161375 Nat Grid SU006613 / SU0062561375 Nearest Post Code SN10 1AX Lat (WGS84) N51:21:05 (51.35145177846422) Long (WGS84) W1:59:33 (-1.992411990715514) Lat,Long (WGS84) 51.35145177846422,-1.992411990715514 Lat (OSGB36) N51:21:03 (51.35095133511017) Long (OSGB36) W1:59:28 (-1.9910242721708398) Lat,Long (OSGB36) 51.35095133511017,-1.9910242721708398 what3words lists.workbook.margin Open Loc/Plus code 9C3W9225+H2P