Angular radius equals half of the angular diameter. Fluid flows through a length of pipe of varying diameter. Standard drums have inside dimensions of diameter and height. Welts may be pinpoint in size or several inches in diameter. This shape has a length equal to its diameter. Height to diameter ratio has no limitation. Its width is 95% of the mean diameter of Vesta. The W44 weighed with a diameter of and length of . Showa with an outer upper tube diameter of and Fichtel and Sachs measuring . The cysts were capable of reaching macroscopic dimensions, up to one centimeter in diameter. Bits are commonly available in sizes from diameter. Metric bar designations represent the nominal bar diameter in millimetres. They typically have a rim to rim diameter of . They simply refer to the size of the threads relative to the screw diameter. Some cartridges have a rim that is significantly smaller than case body diameter.