 # BookRiff

If you don’t like to read, you haven’t found the right book

## What does 1 2500 mean on a map?

For example, 1:2500 means that 1 cm = 2500 cm. In this case, there are 100 centimeters in a meter. When we convert centimeters to meters, 1 cm on the map is equal to 25 meters in real life.

## What is the biggest scale OS map?

The main scales used by Ordnance Survey (OS) for surveying are 1:1250, 1:2500 and 1:10 000. These are referred to as large scale maps, which is when features in the real world are portrayed larger on the map. OS also produce a number of mapping products at other scales, such as 1:25 000 scale and 1:50 000 scale.

What does a scale of 1 200 mean?

1: 200 scale: means 1 metre on the map represents 200 metres on the ground. Therefore it’s a far more detailed map than the 1:1250 scale. We hope this helps!

### What is a 1 10000 map scale?

A map scale might be given in a drawing (a graphic scale), but it usually is given as a fraction or a ratio-1/10,000 or 1:10,000. These “representative fraction” scales mean that one unit of measurement on the map 1 inch or 1 centimeter represents 10,000 of the same units on the ground.

### 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.

How big is a 1 2500 scale model?

0.122 mm
Model scales

Ratio Millimetres per foot
1:3000 0.102 mm
1:2500 0.122 mm
1:2400 0.127 mm
1:2000 0.152 mm

#### 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 you calculate the scale of a map?

First, find yourself a map. Then, using two points, find both the distance on the map and the true distance. Next, you divide the true distance by the measured map distance, and find your scale.

How does a 1 200 scale work?

A drawing of 1:200 is representing 200 units for every one unit – and therefore is showing the elements smaller than the 1:50 drawing. It is worth noting that scale drawings represent the same units. So, if a drawing is at 1:50 in cm, 1cm in the drawing will be equal to 50cm in real life.

## How big is a grid square on a 1 25000 map?

Grid references All OS maps are criss-crossed by vertical and horizontal grid lines (coloured blue on OS Explorer maps) which are 4cm apart on 1:25,000 scale maps and 2cm apart on the 1:50,000 scale. A grid reference uses six figures to identify a particular spot on a map that is 100 metres square.