How much do humpback whales weigh in pounds?

Humpbacks get to a whopping 40 TONS and range from 40 to even a huge 50 feet!
45-38 tons
How much do Humpback Whales weigh? Weight: 35-45 tons (equal to the weight of 500 people!) Speed: 16 mph maximum. Status: Endangered. Humpback whales have a distinctive pigmentation pattern ...

www.blueoceansociety.org/mn.htm -
A humpback whale can weigh 30-50 tons.
a 40 footer weighs around 25 tons. a 55 footer weighs around 51 tons. (give or take a few)