Names for Different Sized Squares

This page is born out of the confusion of what to call different sized squares. The proposal is to refer to the squares as referenced in the top line of the table below; included in the table are various other names they could be called.

Geograph name Centisquare Grid square Hectad Myriad
Size 100 m × 100 m 1 km × 1 km 10 km × 10 km 100 km × 100 km
Area in km² (square kilometres) 0.01 km² 1 km² 100 km² 10,000 km²
Area in m² (square metres) 10,000 m² 1,000,000 m² 100,000,000 m² 10,000,000,000 m²
Length of side in km 0.1 km 1 km 10 km 100 km
Length of side in m 100 m 1,000 m 10,000 m 100,000 m
Modern Landranger maps       100 000 metre square
Interactive guide
& One-inch maps
  1 km squares 10 km squares 100 km squares
Example grid reference TQ562583 TQ5658 TQ55 TQ
Common name     Tile
(OS sell digital data in tiles)
(from here)
Official name     Hectad
( from Wikipedia)
Other possible names (suggestions?) Monad Hundred, Wapentake  
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