Your cat might just be able to win the high jump event at the Summer Olympics. The average cat can jump five or six times their tail length. With a tail that averages 30 centimeters, which is the equivalent of 12 inches or a foot, in length, that means the average house cat can jump roughly 5 to 6 ft in the air despite only standing approximately 10 inches off the ground. To put that in perspective, Olympic high jumpers can only jump twice their height.