Dekastud is a unit of measurement frequently used in Robloxia. It is a SI-based unit. One dekastud is defined as 2.80 meters or 10.0 studs. The dekastud is used less frequently than other units of length. One practical use is for altitude of geopotential heights in meteorology. It used to be defined as 5 decimeters in 2011 before it was redefined as 2.8 meters in 2019.