Look to where the key is and it should give you a scale like 1cm on the map is the equivelent to a km (example)
The map scale is a part of the map that is used to measure distance. The map scale can often be found in or around the map legend.
distance
Using a ruler which marked by Centimeters will more helpful to measure the distance of a map.
If you look at the bottom of the map, there should be a scale. Take a ruler, measure the distance for each measurement, and convert to what you need
Miles
IT tells you how to measure the distance on a map amoung other things.
the scale
Scale
It explains what a specific symbol or color means and how to measure distance on that map.
Multiply distance by the scale bar
Multiply distance by the scale bar
Multiply distance by the scale bar