Convert from hair's breadth to diraa [Egypt]

Unit Definition (hair's breadth)
The hair's breadth is a common informal unit of distance. Human hairs vary considerably in width, depending on age, color, genetics, and other factors. An average hair is approximately 70 to 100 micrometers (µm) in diameter, so, as a rough standard, a hair's breadth is 100 µm or 0.1 millimeter (mm).

Unit Definition (diraa [Egypt])
The diraa is a traditional Egyptian unit of distance equal to about 58 centimeters (22.8 inches).