It tells you how many miles a certain distance on the map represents
A mile in HO scale is about 60.5 Ft.
To draw a mile you must choose a scale. For instance, if you choose a scale of 1 mile to the inch, then one inch on paper represents one mile in reality. Or you can simply stipulate that the distance from point A to point B is 1 mile, without requiring a scale.
The scale would be 1:63360
it means that it is drawn to match a specific measurement ex. 1 inch on a scale on a map is 1 mile
This is an example of a scale drawing.
1 in 20 means for every 1" (or 1cm) on the map represents 20" (or 20cm) in real life. Thus a scale of 1:63360 is 1" representing 63,360 inches, which is 1 mile. So 1" on a map is 1 mile in real life.
The scale of the map.
What relates distances on a map to actual distances, is the map's scale. For instance, a map of a scale 1: 50 000 means that 1 centimetre on the map represents 50,000 centimetres on the ground. An older map scale of '1 inch to 1 mile' means that an inch on the map represents 1 mile on the ground.
1 inch = 1 mile.
it is only to scale. if it says on the map that one inch is one mile, then it is a mile in real life.
The map scale represents the ratio of the map to the real thing. For example, a map scale might say that 1 inch equals 1 mile. That would mean that every inch on the map represents a mile for the real thing.
Scale Bar, if like a ruler. Or Scale, if like "1 inch = 1 mile"