The average length of a woman's femur is 17 to 18 inches, with an average diameter of 1 inch. The average weight of this bone is 261 grams.
The femur is the largest and longest bone in the body. It is also one of the strongest, along with the skull's temporal bone. A typical healthy woman's femur can support 30 times the body's weight. This bone enables the ability to walk and jump. The word "femur" comes from Latin, which means "thigh." In vertebrates having four legs, such as horses and dogs, the femur can be found only in the rear legs.