Core Rules · v1.1.1
8.0 - Measuring
You may take measurements at any time during a battle.
The distance between any one thing (such as a fighter, an object, a terrain feature, or a point on the ground) and any other thing is measured between the closest points on each thing’s base (the part of the thing that is in contact with the ground).
Therefore, the distance between two fighters is measured between the closest points on their bases.
A thing is within a certain distance of another thing if the distance between them is equal to or less than the stated distance.
A thing is wholly within a certain distance of another thing if every part of its base is within the stated distance.
Two things are in contact if their bases are touching.