Bloon Diameter

A Bloon Diameter (or BD) is a unit of distance in Bloons. It is often used to measure the sizes of MOAB-class bloon lengths or the radius of a tower's range or size. Sometimes it can be used to describe the size of non-MOAB bloons, but it often results in values very close to 1. One BD is defined as the height of a Red Bloon, or 64 (±5) pixels. One example is the MOAB, which can be represented as 4.5 BD (±1).