Large, very large. The lowest estimate for Bruhathkayosaurus was
a 139 tons, this is still larger than the average size of a Blue
Whale at around 100-120 tons. Highest estimate could be up to a
whopping 200-220 tons, easily beating the Blue whales record of 180
tons. Unfortunately the size of Bruhathkayosaurus is still in
controversy, since only partial remains of the skeleton is
preserved as well as the fact that some bizare rumors that says
that the bones are actually petrified tree trunks(Seriously what!).
Because of this the actual real weight of Bruhathkayosaurus still
remains a mystery.