How much do tigers eat?

wild tigers (not in captivity) eat between 10 and 20 pounds of fresh meat every single day

the Sumatran tiger can eat up to 40 pounds of meat a day
Bengals and siberians can eat up to 70 pounds at one time.a Bengal male ate an entire buffalo cow,weighing 700 pounds,in four days!this was documented by famed big game hunter James corbett,who killed several man eating leopards and tigers in India in the early 1900's.
Hope it helped!