How to choose the right map

1:1250 scale

Maps at a scale of 1:1250 are large-scale maps. One centimetre on a 1:1250 scale map is equal to 1250 centimetres (or 12.5 metres) on the ground; four centimetres on the map, therefore, represents 50 metres on the ground (80cm = 1 km). Alternatively, 50 inches on the map is equal to one mile on the ground.

At this scale, roads, buildings, fences and landscape features are shown in detail. The shapes of individual buildings are accurately represented as well as being named or numbered. Big Ben is highlighted as clock tower.

This scale of mapping covers urban areas only. Most rural areas are covered at 1:2500 scale (1 centimetre on the map is equal to 2 500 centimetres – or 25 metres – on the ground).

Mapping at 1:1250 and 1:2500 scales is used by central and local government, utilities (gas, electricity, water and telecommunications companies) and other organisations wanting highly detailed mapping for planning or business management purposes.