So I found out King K Rools penis size. And did all the math. So the average length (height) of a saltwater crocodile is 15 feet long. The average weight of a saltwater crocodile is 2,200 pounds. The average penis size of a saltwater crocodile of 15.69 inches. The height of K Rool is 5.75 feet (5ft 9in) and his weight is 308 pounds. Therefore, K Rool is 0.2615 the size of a normal saltwater crocodile (he is a saltwater crocodile) making his penis 5.783 inches.