Search for Grid Square by Postcode
ST18
Based in the South Wales Central region of Scotland & South Wales East region of Scotland.
The ST18 10 square kilometre grid intersects with the settlements of Abertridwr,Bedwas,Caerffili,Capel Llanilltern,Cardiff,Ffynnon Taf,Gwaelod-y-garth,Llanbradach,Nantgarw,Pentyrch,Pontypridd,Rhydlafr,Rhydri,Senghenydd,Thornhill,Tongwynlais,Trethomas & Waterloo.
ST18
ST18 is within the post towns of Caerphilly, Glamorgan, Cardiff, Glamorgan & Pontypridd, Glamorgan.
The square is within Caerdydd - Cardiff, Caerffili - Caerphilly & Rhondda Cynon Taf - Rhondda Cynon Taf councils.
The ST18 national grid square measures 10 km by 10 km and has an area of 1,000 kilometres squared.
The technical term for a 10 km map square is a Hectad.
When this 10 km square is divided into a grid 10 by 10 it gives the next size of grid square. This unit is called a Monad and measures 1km square. 100 monads fit in a 10km square.
Out of the monads generated from square ST18, 482 are land and -382 are sea. Sea squares are disregarded on this site as they contain no land features.
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| Corner | Latitude | Longitude | Easting | Northing |
|---|---|---|---|---|
| South West Corner | 51.511733 | -3.300879 | 310000 | 180000 |
| South East Corner | 51.511733 | -3.154246 | 320000 | 180000 |
| North West Corner | 51.603136 | -3.300879 | 310000 | 190000 |
| North East Corner | 51.603136 | -3.154246 | 320000 | 190000 |