OS X (Eastings)     540815
OS Y (Northings)    178314
Nat Grid            TQ408783 / TQ4081578314
Nearest Post Code   SE7 7QP
Lat (WGS84)         N51:29:11 (51.48625212066462)
Long (WGS84)        E0:01:36 (0.02669454398849927)
Lat,Long (WGS84)    51.48625212066462,0.02669454398849927
Lat (OSGB36)        N51:29:09 (51.485736773208124)
Long (OSGB36)       E0:01:42 (0.028317746214328476)
Lat,Long (OSGB36)   51.485736773208124,0.028317746214328476
what3words          slows.remote.gives
Open Loc/Plus code  9F32F2PG+GM4