The Levi's 514 Slim Straight generally have a 17" (43.18cm) leg opening. The leg opening may vary by waist size. It has a straight leg fit, between snug and baggy.
The Levi's 511 Skinny have a 14.5" (36.83cm) leg opening.It has a slim/skinny leg fit, close at the thigh and straight to the ankle.