OS X (Eastings) 523177 OS Y (Northings) 226679 Nat Grid TL231266 / TL2317726679 Nearest Post Code SG1 4AQ Lat (WGS84) N51:55:30 (51.92501170817459) Long (WGS84) W0:12:36 (-0.21012187176516792) Lat,Long (WGS84) 51.92501170817459,-0.21012187176516792 Lat (OSGB36) N51:55:28 (51.9245510114897) Long (OSGB36) W0:12:31 (-0.20850749328254503) Lat,Long (OSGB36) 51.9245510114897,-0.20850749328254503 what3words star.twins.milky Open Loc/Plus code 9C3XWQGQ+2X2