* The species: Whale species have vastly different sizes. A blue whale calf might weigh 4 tons at birth, while a dwarf sperm whale calf might weigh just 100 pounds.
* Individual growth rate: Even within a species, individual whales grow at different rates.
* Food availability and environmental factors: A whale with abundant food will grow much faster than one struggling to find enough to eat.
However, here's what we can say:
* Whale calves grow incredibly fast. They typically double or triple their birth weight within the first few months of life.
* Growth slows down as they age. While they continue growing, the rate of growth slows considerably after the first year or two.
To estimate a whale's weight after 2 years, you would need more information about the specific species and individual.