Islamic world

In the Islamic world, the cubit had a similar origin, being originally defined as the arm from the elbow to the tip of the middle finger. Several different cubit lengths were current in the medieval Islamic world for the unit of length, ranging from 48.25-145.6 cm, and in turn the was commonly subdivided into six handsbreadths , and each handsbreadth into four fingerbreadths . The most commonly used definitions were:
* the legal cubit , also known as the hand cubit , cubit of Yusuf (, named after the 8th-century