"The average length of the small intestine in an adult human male is 6.9 m (22 feet 6 inches), and in an adult female 7.1 m (23 feet 4 inches). It can vary greatly, from as short as 4.6 m (15 feet) to as long as 9.8 m (32 feet)."
"In humans the intestine is divided into two major sections: the small intestine, which is about 6 m (20 ft) long,...; and the large intestine, which has a larger diameter and is about 1.5 m (5 ft) long,..."