There is no standard.
However, having said that, if you buy a map book or sheet, there are various scales which are generally used:
1:221,760 (1 inch = 3½ miles)
1:63,360 (1 inch = 1 mile - no longer issued by OS)
1:50,000 (2 cm = 1 km - the OS Landranger series, replacing the 1:63,360 series)
1:25,000 (4 cm = 1 km - the OS Pathfinder series)
The scale chosen depends upon the use.
The smaller the scale (the second number above) the more detail that can be put on the map.
The first example scale above is a map book for driving and generally shows major roads and some minor roads to allow for route planning.
The second/third examples can be used for driving, cycling or walking as they show roads, bridal ways, footpaths
The last example is good for walking as it shows more detail including field boundaries.
Maps with even smaller second numbers are used by specialist surveyors, eg to show property boundaries.
Atlases have a much larger second number.
The larger the second number, the less details that can be put (accurately) on the map.
There is no standard scale of a map. The scale used depends on what the map is used for. A motorist may use a 4 miles to 1 inch, a cyclist 1 mile to 1 inch (or 1:50 000), and a walker use 1:25 000 - and so on.
A large scale map.
A map that is not life size is referred to as a "scale map." Scale maps represent geographical areas at a reduced size, using a specific ratio to indicate the relationship between distances on the map and actual distances in the real world. For example, a scale of 1:100,000 means that 1 unit on the map represents 100,000 units in reality.
if 2cm is 50km 1cm is 25km
It is drawn to full size
Where does the series number on a map appear
There is no standard scale of a map. The scale used depends on what the map is used for. A motorist may use a 4 miles to 1 inch, a cyclist 1 mile to 1 inch (or 1:50 000), and a walker use 1:25 000 - and so on.
A map scale of 1:175,000 means that 1 centimetre on the map represents 175,000 centimetres on the ground.
A map with a scale of 1:175,000 is considered a medium scale map. This means that one unit of measurement on the map represents 175,000 of the same units on the ground, allowing for a balance between detail and area coverage. Medium scale maps typically show more detail than large scale maps, which represent smaller areas, but less detail than small scale maps, which cover larger areas with less detail.
The terms "small scale" and "large scale" are relative terms. Compared to a street map (typically 1:30000 or less) it is a large scale. Compared to a world map (1:10,000,000 or higher), it would be smaller. But because a 1:175000 does not show much detail (1 cm = 1.75 km), it would usually be considered a large scale map. It could be used for a metropolitan area highway map.
The size of an area on a map compared to its actual size is known as the scale of the map. Scale is typically represented as a ratio or a graphic scale, indicating how much the map has been reduced from the real world. For example, a scale of 1:10,000 means that one unit on the map represents 10,000 of the same units in the actual world.
This is a large-scale map. Maps with scales of 1:75,000 and larger are used for tactical, administrative, and logistical planning. These are the maps that a soldier is most likely to encounter. The standard large-scale map is 1:50,000; however, many areas have been mapped at a scale of 1:25,000.
I just call it a map. Scale is the size of the map relative to the reality. If you draw a map of your bedroom that is the same size as your bedroom, it has a scale of 1:1. I use a map of my town that is 1:100,000 (one centimetre equals one kilometre).
The relationship between the size of an area on a map and its actual size is represented by the map scale. The scale provides a ratio or a fraction that shows how much smaller the map is compared to the actual area being represented. It helps users understand the distance and size relationships between locations on the map and in reality.
scale of the map. The scale of a map can be represented as a ratio, such as 1:10,000, indicating how much the distances on the map are reduced from the actual distances on the earth's surface.
large
A large scale map.