Distances

''' and their knowledge of them are an integral part of understanding the interaction between Game Mechanics and Perks in '.

Map Tiles
The Maps in Dead by Daylight are procedurally generated and based on square/rectangular Tiles. The Tiles are more or less fixed in place, but can freely rotate themselves from one iteration to another.

Map Tiles come in three different sizes: 16 by 16, 16 by 32 or 32 by 32 metres.

The shortest and also most accurate and easiest measurable distance in the Game is the length of a border wall section, surrounding the outer boundaries of the Maps. The distance from the centre of one post to the next is exactly . On some Maps (ie The Pale Rose), there exists a double wall section, with a length of  in-between the posts.

Aura-Reading
Since most Aura-reading Perks use (partial) increments of 8 in regards to the distance in which they enable the Aura-reading, this makes it simple to gauge the actual in-game distance with the help of the border walls.

Take for example with 1 Token activated: if the Killer is within  of you, all their Aura-reading towards you is disabled. This is equivalent to the Killer being within the length of  of you.