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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 blue whale's tongue weighs more than an elephant. Average fully grown blue whales are around 100-120 tonnes and particularly large individuals have been estimated at 200 tonnes. An average blue is about the equivalent of about 25 fully grown African bull elephants.