What does 1 50000 mean on a OS map?

What does 1 50000 mean on a OS map?

Scale describes the ratio in size between something in the real world and its representation on a map. In other words, if a map has a scale of 1:50 000 then a distance of 1 cm on the map represents 50 000cm (500 m) in the real world. These are referred to as small scale.

What does a scale of 1 25000 on an OS map mean?

The basics On a 1:25 000 map, such as an OS Explorer, one unit of length on the map represents 25,000 units on the ground. So 1cm on the map represents 25,000cm or 250 metres on the ground.

How do I read an Ordnance Survey map?

Grid references accurately locate places on a map. Every OS map has a grid, which is shown using faint blue lines. The lines across the bottom of the map are called eastings as they travel towards the east. The lines up the side of the map are called northings as they travel towards the north.

What does 1 100000 mean on a map?

Map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. For example, on a 1:100000 scale map, 1cm on the map equals 1km on the ground. For example, a 1:100000 scale map is considered a larger scale than a 1:250000 scale map.

How do Ordnance Survey maps work?

A quick way to measure distance is to count each square you cross on the map. On your Ordnance survey map each grid square measures one kilometre from side to side and from top to bottom. If you go diagonally across a square, the distance will be a bit longer – about 1.5 km.

Is there a free OS map app?

OS Maps. The free, registered version provides access to Britain-wide basic mapping, plus the ability to create, print and share routes with other users.

How accurate is a 1 25000 map?

A map scale correctly reduces the actual distance on the ground to a corresponding distance on a map. The first number is the unit on the map and the second number is the distance in real life of the same unit so 1: 25,000 means that 1cm on the map corresponds to 25,000 cm on the ground.

What does the six figure GR 198823 tell you?

What does the six-figure grid reference 198823 tell you? It gives you an exact point in grid square 1988 that is 2/10s across and 3/10s up. It gives you an exact point in grid square 1982 that is 8/10s across and 3/10s up.