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A blue whale can weigh as much as 200 short tons (400,000 lbs). An adult blue whale can weigh up to around 180 metric tons (400,000lbs). A blue whale can weigh as much as 200 short tons (400,000 lbs).An adult blue whale can weigh up to around 180 metric tons (400,000lbs). A blue whale calve can weigh up to 2.7 metric tons (almost 6000lbs)
A female Killer Whale, Orca, cow, length can be 16 to 19 feet. Weight gets up to 3000-8000 pounds. A male Killer Whale, bull, gets up to 19-22 feet in length and their weight is 8000 to 12000 pounds.The largest male recorded weighed 22000 pounds and was 32 feet in length.iller Whales vary in size from eco-type to eco-type, but on average the females are about 1,200-10,00 lbs, and about 14-20 feet long; the males are a little larger, at about 10,000-18,000 lbs, and about 20-32 feet long.