OS X (Eastings)     438592
OS Y (Northings)    559037
Nat Grid            NZ385590 / NZ3859259037
Nearest Post Code   SR5 2PL
Lat (WGS84)         N54:55:28 (54.92453787394425)
Long (WGS84)        W1:23:58 (-1.3993767330626772)
Lat,Long (WGS84)    54.92453787394425,-1.3993767330626772
Lat (OSGB36)        N54:55:28 (54.92444755908101)
Long (OSGB36)       W1:23:52 (-1.3977723522220096)
Lat,Long (OSGB36)   54.92444755908101,-1.3977723522220096
what3words          mass.maybe.gives
Open Loc/Plus code  9C6WWJF2+R69