The tiger shark commonly attains a length of 3-4 .2 m ( 9.8-13 .8 ft ) and weighs around 385-635 kg ( 849-1 ,400 lb ) .
The Tiger shark is one of the largest known sharks , commonly reaching a length of 3.3-4 .3 metres ( 11-14 feet ) , and weighing around 385-635 kg ( 850-1400 pounds ) .