Originally Posted by

**Lambin** No, I do mean centimeters. Because I could also say that 1:1000 implies 1 cm = 1000 km under the same assumption. The point is, only the map-creator would know what the conversion is exactly. So, with a ratio as 1:1000, the only safe assumption that can be made is that whatever measuring device you are using, the physical distance would be multiplied by 1000. Therefore, if it is 2 cm then it would 2000 cm. If it is 0.02 m then it would be 20 m. Both results would be consistent with each other because 2000 cm = 20 m and 2 cm = 0.02 m which is the same physical distance. Here, I'm illustrating that it doesn't matter what units we choose because the ratio is unitless.

Disclaimer: I don't have much experience with maps, but to me, if we needed to know that 1:1000 is 1 cm = 1000 m, then you would need to know information beyond the text to be able to solve this problem.